Hi Everyone,
This is the final summary for America's Birdiest County in Los Angeles on April 28-30, 2023.
The final total this year was 268 species. After the last update we added golden eagle and prairie falcon found at Quail Lake and along Gorman Post Road on April 30.
How does our total compare with results from previous years
Here are America's Birdiest County totals for Los Angeles County since 2003:
Year Total
2023 268 Apr 28-30
2022 265 Apr 22-24
2021 277 Apr 23-25
2020 No count due to covid 19
2019 257 Apr 26-28
2018 263 Apr 27-29
2017 264 Apr 28-30
2016 270 Apr 29-May 1
2015 275 Apr 25-27
2014 272 Apr 25-27
2013 265 Apr 26-28
2012 262 Apr 29-30
2011 277 Apr 22-24
2010 271 Apr 23-25
2009 264 Apr 24-26
2008 255 Apr 25-27
2007 271 Apr 26-28
2006 263 Apr 28-30 Format changed from one day to three days; more organization
2005 246
2004 239
2003 239
Average from 2003-present: 2631 +- 11.2
Our total in 2023 was 5 species above our long-term average of 263.
Finding this many species takes a lot of effort, and we got that many because a lot of very dedicated and knowledgeable people went into the field and covered the majority of the most important locations for birds across the county. This resulted in excellent coverage at the Piute Ponds, Apollo Park, Bonelli Park, Legg Lake, Quail Lake, parks in Long Beach, and the Ballona/Playa de Rey area.
Nevertheless, we struggled to find some rarities that had apparently left within a few days of the count, or were somehow missed, and, despite dedicated searches, we struggled with owls that we usually find. In fact, this was one of our worst year for owls, given that we found only four species of nine that have been recorded in previous years, and the fifth year in a row that we've failed to find a burrowing owl. The situation for that species is alarming.
268 species is slightly above our long-term average of 263 but we need to keep in mind that numerous introduced species have been added to the state list in recent years: Nanday parakeet, yellow-chevroned parakeet, Lilac-crowned parrot, mitred parakeet, red-masked parakeet, red-whiskered bulbul, and scaly-breasted munia. A few years ago we also relaxed our previous restriction on counting bald eagles on Catalina Island due to our (incorrect) perception that they needed human intervention to survive. Now they're also nesting annually along highway 39 on the mainland as well. As a result, it's not as difficult to reach 268 species as it was only a few years ago.
Previous America's Birdiest County winners:
...discontinued after 2011...
2011 277 Los Angeles
2010 271 Los Angeles
2009 264 Los Angeles
2008 255 Los Angeles
2007 271 Los Angeles
2006 263 Los Angeles
2005 250 Monterey and San Diego (tie)
2004 266 San Diego
2003 248 Monterey
America's Birdiest County was a one-day event during its first three years. Starting in 2006, the format changed to three days. 2006 is also the first year that we really got organized in Los Angeles County and that accounts for the distinct uptick in the number of species relative to the first three years.
We added four new species this year:
Tundra Bean-Goose
Red-footed Booby
Nanday Parakeet Introduced
Red-masked Parakeet Introduced
How do four new species compare with results from previous years
Here are the number of new species that we've added since 2010:
2024 4 (two were introduced)
2022 3 (two were introduced)
2021 5 (two were introduced)
2020 No count due to covid 19
2019 3
2018 0 Only year we didn't add any species
2017 1
2016 5
2015 4
2014 5
2013 3
2012 5
2011 7
2010 5
Our recent history of adding a few species annually probably indicates that there are still new species to find in future years. Given the near misses we have every year, it may be many years before we run out of new ones, even without introduced species newly accepted by the California Bird Records Committee.
Here are the species we FOUND in 2023:
* Snow Goose
* Ross's Goose
* Greater White-fronted Goose
* Tundra Bean-Goose NEW!
* Cackling Goose
* Canada Goose
* Blue-winged Teal
* Cinnamon Teal
* Northern Shoveler
* Gadwall
* American Wigeon
* Mallard
* Northern Pintail
* Green-winged Teal
* Redhead
* Ring-necked Duck
* Lesser Scaup
* Surf Scoter
* White-winged Scoter
* Long-tailed Duck
* Bufflehead
* Common Merganser
* Red-breasted Merganser
* Ruddy Duck
* Mountain Quail
* California Quail
* Pied-billed Grebe
* Eared Grebe
* Western Grebe
* Clark's Grebe
* Rock Pigeon
* Band-tailed Pigeon
* Eurasian Collared-Dove
* Spotted Dove
* Inca Dove
* White-winged Dove
* Mourning Dove
* Greater Roadrunner
* Lesser Nighthawk
* Common Poorwill
* Vaux's Swift
* White-throated Swift
* Black-chinned Hummingbird
* Anna's Hummingbird
* Costa's Hummingbird
* Rufous Hummingbird
* Allen's Hummingbird
* Calliope Hummingbird
* Virginia Rail
* Sora
* Common Gallinule
* American Coot
* Black-necked Stilt
* American Avocet
* Black Oystercatcher
* Black-bellied Plover
* Pacific Golden-Plover
* Snowy Plover
* Semipalmated Plover
* Killdeer
* Whimbrel
* Long-billed Curlew
* Marbled Godwit
* Black Turnstone
* Surfbird
* Sanderling
* Dunlin
* Least Sandpiper
* Western Sandpiper
* Short-billed Dowitcher
* Long-billed Dowitcher
* Wilson's Snipe
* Wilson's Phalarope
* Red-necked Phalarope
* Red Phalarope
* Spotted Sandpiper
* Solitary Sandpiper
* Wandering Tattler
* Greater Yellowlegs
* Willet
* Lesser Yellowlegs
* Common Murre
* Bonaparte's Gull
* Heermann's Gull
* Ring-billed Gull
* Western Gull
* California Gull
* Herring Gull
* Lesser Black-backed Gull
* Glaucous-winged Gull
* Least Tern
* Caspian Tern
* Forster's Tern
* Royal Tern
* Elegant Tern
* Black Skimmer
* Red-throated Loon
* Pacific Loon
* Common Loon
* Sooty Shearwater
* Black-vented Shearwater
* Red-footed Booby NEW!
* Brandt's Cormorant
* Pelagic Cormorant
* Neotropic Cormorant
* Double-crested Cormorant
* American White Pelican
* Brown Pelican
* Great Blue Heron
* Great Egret
* Snowy Egret
* Cattle Egret
* Green Heron
* Black-crowned Night-Heron
* Yellow-crowned Night-Heron
* White-faced Ibis
* Turkey Vulture
* Osprey
* White-tailed Kite
* Golden Eagle
* Northern Harrier
* Sharp-shinned Hawk
* Cooper's Hawk
* Bald Eagle
* Red-shouldered Hawk
* Swainson's Hawk
* Red-tailed Hawk
* Barn Owl
* Western Screech-Owl
* Great Horned Owl
* Northern Saw-whet Owl
* Belted Kingfisher
* Williamson's Sapsucker
* Red-breasted Sapsucker
* Lewis's Woodpecker
* Acorn Woodpecker
* Downy Woodpecker
* Nuttall's Woodpecker
* Ladder-backed Woodpecker
* Hairy Woodpecker
* White-headed Woodpecker
* Northern Flicker
* American Kestrel
* Merlin
* Peregrine Falcon
* Prairie Falcon
* Yellow-chevroned Parakeet
* Red-Crowned Parrot
* Lilac-Crowned Parrot
* Nanday Parakeet
* Mitred Parakeet
* Red-masked Parakeet
* Olive-sided Flycatcher
* Western Wood-Pewee
* Hammond's Flycatcher
* Gray Flycatcher
* Dusky Flycatcher
* Pacific-slope Flycatcher
* Black Phoebe
* Say's Phoebe
* Vermilion Flycatcher
* Dusky-capped Flycatcher
* Ash-throated Flycatcher
* Tropical Kingbird
* Cassin's Kingbird
* Western Kingbird
* Bell's Vireo
* Hutton's Vireo
* Cassin's Vireo
* Warbling Vireo
* Loggerhead Shrike
* Steller's Jay
* California Scrub-Jay
* American Crow
* Common Raven
* Mountain Chickadee
* Oak Titmouse
* Verdin
* Horned Lark
* Northern Rough-winged Swallow
* Tree Swallow
* Violet-green Swallow
* Bank Swallow
* Barn Swallow
* Cliff Swallow
* Red-Whiskered Bulbul
* Bushtit
* Wrentit
* Golden-crowned Kinglet
* Ruby-crowned Kinglet
* Red-breasted Nuthatch
* White-breasted Nuthatch
* Pygmy Nuthatch
* Brown Creeper
* Blue-gray Gnatcatcher
* California Gnatcatcher
* Rock Wren
* Canyon Wren
* House Wren
* Marsh Wren
* Bewick's Wren
* Cactus Wren
* American Dipper
* European Starling
* California Thrasher
* Northern Mockingbird
* Western Bluebird
* Townsend's Solitaire
* Swainson's Thrush
* Hermit Thrush
* American Robin
* Cedar Waxwing
* Phainopepla
* House Sparrow
* Scaly-breasted Munia
* American Pipit
* House Finch
* Purple Finch
* Cassin's Finch
* Red Crossbill
* Lesser Goldfinch
* Lawrence's Goldfinch
* American Goldfinch
* Chipping Sparrow
* Black-chinned Sparrow
* Brewer's Sparrow
* Black-throated Sparrow
* Lark Sparrow
* Fox Sparrow
* Dark-eyed Junco
* White-crowned Sparrow
* Golden-crowned Sparrow
* White-throated Sparrow
* Bell's Sparrow
* Savannah Sparrow
* Song Sparrow
* Lincoln's Sparrow
* Swamp Sparrow
* California Towhee
* Rufous-crowned Sparrow
* Green-tailed Towhee
* Spotted Towhee
* Yellow-breasted Chat
* Yellow-headed Blackbird
* Western Meadowlark
* Hooded Oriole
* Bullock's Oriole
* Scott's Oriole
* Red-winged Blackbird
* Tricolored Blackbird
* Brown-headed Cowbird
* Brewer's Blackbird
* Great-tailed Grackle
* Orange-crowned Warbler
* Nashville Warbler
* MacGillivray's Warbler
* Common Yellowthroat
* Yellow Warbler
* Palm Warbler
* Yellow-rumped Warbler
* Black-throated Gray Warbler
* Townsend's Warbler
* Hermit Warbler
* Wilson's Warbler
* Western Tanager
* Black-headed Grosbeak
* Blue Grosbeak
* Lazuli Bunting
The table below lists every species we've recorded during the ABC weekend since 2004 and the number of years in which we've found each one. "11" indicates that we found a species in a given year and "00" indicates that we didn't In an attempt to make the columns align, I added an extra "1" or "0" in each column. The alignment works best if you use the Courier font in your email.
NN 23 22 21 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 SPECIES
15 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 00 00 00 11 Snow Goose
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Ross's Goose
18 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 Greater White-fronted Goose
01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Tundra Bean-Goose
17 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 Brant
17 11 11 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 Cackling Goose
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Canada Goose
17 00 11 11 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Wood Duck
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Blue-winged Teal
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Cinnamon Teal
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Northern Shoveler
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Gadwall
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 American Wigeon
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Mallard
17 11 00 11 11 11 11 11 11 11 11 11 11 11 00 11 11 11 11 11 Northern Pintail
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Green-winged Teal
04 00 11 00 00 00 00 00 11 11 00 00 00 00 11 00 00 00 00 00 Canvasback
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Redhead
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Ring-necked Duck
02 00 00 11 00 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 Greater Scaup
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Lesser Scaup
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Surf Scoter
03 11 00 11 00 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 White-winged Scoter
04 00 00 00 11 00 00 00 00 00 00 00 11 11 00 00 00 00 11 00 Black Scoter
03 11 00 11 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 Long-tailed Duck
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Bufflehead
03 00 00 00 00 00 00 00 11 11 00 00 00 11 00 00 00 00 00 00 Common Goldeneye
11 00 11 11 11 11 00 11 00 11 00 11 00 11 00 00 11 11 00 11 Hooded Merganser
16 11 11 11 11 11 11 11 11 11 11 00 11 11 00 11 11 11 00 11 Common Merganser
18 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 Red-breasted Merganser
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Ruddy Duck
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Mountain Quail
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 California Quail
14 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 00 00 00 Gambel's Quail
14 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 00 00 00 Chukar
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Pied-billed Grebe
11 00 00 11 00 00 11 11 11 11 11 11 11 11 00 11 11 00 00 00 Horned Grebe
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Eared Grebe
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Western Grebe
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Clark's Grebe
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Rock Pigeon
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Band-tailed Pigeon
18 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 Eurasian Collared-Dove
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Spotted Dove
14 11 00 11 11 11 11 11 11 11 00 00 11 11 11 11 11 11 00 00 Inca Dove
15 00 00 11 11 11 11 11 11 11 11 11 11 11 11 11 00 11 00 11 Common Ground-Dove
03 11 00 00 00 00 00 00 00 00 11 00 00 00 00 11 00 00 00 00 White-winged Dove
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Mourning Dove
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Greater Roadrunner
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Lesser Nighthawk
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Common Poorwill
02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 11 Black Swift SUSPECT
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Vaux's Swift
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 White-throated Swift
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black-chinned Hummingbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Anna's Hummingbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Costa's Hummingbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Rufous Hummingbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Allen's Hummingbird
14 11 11 11 00 11 11 11 11 11 11 11 11 00 11 00 11 11 00 00 Calliope Hummingbird
01 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00 Ridgway's Rail
18 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 11 Virginia Rail
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Sora
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Common Gallinule
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 American Coot
01 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 00 00 Sandhill Crane
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black-necked Stilt
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 American Avocet
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black Oystercatcher
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black-bellied Plover
04 11 00 00 00 11 00 11 00 00 00 00 00 00 11 00 00 00 00 00 Pacific Golden-Plover
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Snowy Plover
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Semipalmated Plover
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Killdeer
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Whimbrel
18 11 11 11 11 11 11 00 11 11 11 11 11 11 11 11 11 11 11 11 Long-billed Curlew
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Marbled Godwit
18 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Ruddy Turnstone
18 11 11 11 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black Turnstone
02 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 11 00 00 Red Knot
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Surfbird
01 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 Ruff
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 Stilt Sandpiper
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Sanderling
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Dunlin
04 00 00 00 00 11 00 00 00 00 00 00 11 11 11 00 00 00 00 00 Baird's Sandpiper
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Least Sandpiper
01 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Pectoral Sandpiper
02 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 11 Semipalmated Sandpiper
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Western Sandpiper
15 11 11 11 00 11 11 11 11 00 11 00 11 00 11 11 11 11 11 11 Short-billed Dowitcher
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Long-billed Dowitcher
13 11 11 11 11 00 11 11 11 11 11 00 11 00 00 11 00 11 11 00 Wilson's Snipe
14 11 11 11 00 00 11 11 11 00 11 00 11 11 11 11 11 11 00 11 Wilson's Phalarope
18 11 11 11 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Red-necked Phalarope
03 11 00 00 11 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 Red Phalarope
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Spotted Sandpiper
15 11 11 11 00 00 11 11 11 11 11 00 11 11 11 11 11 11 11 00 Solitary Sandpiper
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Wandering Tattler
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Greater Yellowlegs
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Willet
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 Lesser Yellowlegs
07 00 00 00 00 00 00 00 00 11 00 00 11 11 11 00 11 11 11 00 Pomarine Jaeger
10 00 11 11 00 00 11 00 00 00 11 00 11 11 00 11 11 11 11 00 Parasitic Jaeger
06 11 00 00 00 00 11 00 11 11 11 11 00 00 00 00 00 00 00 00 Common Murre
04 00 11 00 11 00 00 00 00 00 00 11 00 00 00 00 11 00 00 00 Scripps's Murrelet
02 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 11 00 00 00 Cassin's Auklet
03 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 11 11 00 00 Rhinoceros Auklet
01 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 Sabine's Gull
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Bonaparte's Gull
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 Laughing Gull
10 00 11 11 11 00 11 11 00 00 11 00 00 00 00 11 11 00 11 11 Franklin's Gull
18 11 11 11 11 11 00 11 11 11 11 11 11 11 11 11 11 11 11 11 Heermann's Gull
02 00 00 00 00 00 00 00 00 00 00 00 11 00 00 11 00 00 00 00 Short-billed Gull
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Ring-billed Gull
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Western Gull
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 California Gull
17 11 11 11 11 00 11 11 11 11 11 11 11 11 11 11 11 11 11 00 Herring Gull
02 00 00 00 00 00 00 00 00 00 11 00 00 00 11 00 00 00 00 00 Iceland/Thayer's Gull
02 11 00 11 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Lesser Black-backed Gull
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Glaucous-winged Gull
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 Glaucous Gull
18 11 11 11 11 11 11 11 11 11 11 11 11 11 00 11 11 11 11 11 Least Tern
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Caspian Tern
05 00 00 00 00 11 00 00 11 00 00 11 00 00 00 00 11 11 00 00 Black Tern
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 Common Tern
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Forster's Tern
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Royal Tern
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Elegant Tern
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black Skimmer
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Red-throated Loon
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Pacific Loon
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Common Loon
01 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 Yellow-billed Loon
01 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 Black-footed albatross
01 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Leach's Storm-Petrel
03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 11 11 Northern Fulmar
13 00 11 00 00 11 11 11 11 11 00 00 11 11 11 11 11 11 11 00 Pink-footed Shearwater
18 11 11 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Sooty Shearwater
08 11 00 00 00 11 11 00 11 11 00 00 00 00 00 00 11 00 11 11 Black-vented Shearwater
01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Red-footed Booby
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Brandt's Cormorant
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Pelagic Cormorant
04 11 11 11 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00 Neotropic Cormorant
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Double-crested Cormorant
18 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 11 11 11 American White Pelican
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Brown Pelican
04 00 00 00 00 00 00 11 00 00 00 11 11 00 11 00 00 00 00 00 American Bittern
18 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Least Bittern
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Great Blue Heron
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Great Egret
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Snowy Egret
16 11 11 11 00 11 00 11 11 11 00 11 11 11 11 11 11 11 11 11 Cattle Egret
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Green Heron
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black-crowned Night-Heron
06 11 11 11 11 11 11 00 00 00 00 00 00 00 00 00 00 00 00 00 Yellow-crowned Night-Heron
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 White-faced Ibis
01 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 California Condor
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Turkey Vulture
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Osprey
18 11 11 11 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 White-tailed Kite
17 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 00 Golden Eagle
18 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 Northern Harrier
18 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 11 11 Sharp-shinned Hawk
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Cooper's Hawk
07 11 11 11 11 11 11 11 ..........Not Counted............. Bald Eagle
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Red-shouldered Hawk
18 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 11 11 11 11 Swainson's Hawk
01 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Zone-tailed Hawk
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Red-tailed Hawk
04 00 00 00 00 00 00 11 00 00 11 00 11 11 00 00 00 00 00 00 Ferruginous Hawk
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Barn Owl
12 00 00 11 11 11 11 11 11 11 11 11 00 11 00 00 11 00 11 00 Flammulated Owl
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Western Screech-Owl
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Great Horned Owl
17 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 Northern Pygmy-Owl
14 00 00 00 00 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Burrowing Owl
16 00 00 11 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Spotted Owl
06 00 00 11 00 00 11 11 00 00 00 11 11 00 11 00 00 00 00 00 Long-eared Owl
16 11 00 11 11 11 11 11 00 00 11 11 11 11 11 11 11 11 11 11 Northern Saw-whet Owl
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Belted Kingfisher
15 11 00 00 11 11 11 11 11 11 11 11 11 11 11 11 11 00 11 00 Williamson's Sapsucker
01 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 00 00 Red-naped Sapsucker
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Red-breasted Sapsucker
14 11 11 00 11 11 00 11 11 11 11 00 11 11 11 00 11 00 11 11 Lewis's Woodpecker
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Acorn Woodpecker
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Downy Woodpecker
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Nuttall's Woodpecker
16 11 11 11 11 11 00 11 11 00 11 11 11 11 11 11 11 11 00 11 Ladder-backed Woodpecker
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Hairy Woodpecker
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 White-headed Woodpecker
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Northern Flicker
01 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 00 00 Crested Caracara
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 American Kestrel
16 11 11 11 11 11 00 11 11 11 11 11 11 11 11 11 00 11 11 00 Merlin
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Peregrine Falcon
17 11 11 11 11 11 11 00 11 00 11 11 11 11 11 11 11 11 11 11 Prairie Falcon
03 11 11 11 .................Not Countable................ Yellow-chevroned Parakeet
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Red-crowned Parrot
02 11 11 ...................Not Countable................. Lilac-crowned Parrot
01 11 .......................Not Countable................. Nanday Parakeet
02 11 11 ....................Not Countable................. Mitred Parakeet
01 11 .......................Not Countable................. Red-masked Parakeet
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Olive-sided Flycatcher
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Western Wood-Pewee
01 00 11 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Least Flycatcher
02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 11 00 00 Willow Flycatcher SUSPECT
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Hammond's Flycatcher
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Gray Flycatcher
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Dusky Flycatcher
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Pacific-slope Flycatcher
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black Phoebe
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Say's Phoebe
10 11 11 11 11 11 11 11 11 11 00 11 00 00 00 00 00 00 00 00 Vermilion Flycatcher
04 11 00 00 00 00 00 00 00 11 00 11 11 00 00 00 00 00 00 00 Dusky-capped Flycatcher
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Ash-throated Flycatcher
08 11 00 11 11 11 00 00 00 00 00 00 11 11 00 00 11 00 11 00 Tropical Kingbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Cassin's Kingbird
02 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 11 00 00 Thick-billed Kingbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Western Kingbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Bell's Vireo
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Hutton's Vireo
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Cassin's Vireo
11 00 11 11 00 11 11 00 00 00 11 11 11 11 11 00 11 11 00 00 Plumbeous Vireo
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Warbling Vireo
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Loggerhead Shrike
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Steller's Jay
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 California Scrub-Jay
16 00 11 11 00 11 11 11 11 11 11 11 11 11 11 11 11 11 00 11 Clark's Nutcracker
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 American Crow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Common Raven
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Mountain Chickadee
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Oak Titmouse
18 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 Verdin
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Horned Lark
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Northern Rough-winged Swallow
09 00 11 11 00 11 11 00 00 11 00 11 00 11 11 00 11 00 00 00 Purple Martin
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Tree Swallow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Violet-green Swallow
17 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 11 11 00 11 Bank Swallow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Barn Swallow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Cliff Swallow
03 11 11 11 ..................Not Countable................ Red-Whiskered Bulbul
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Bushtit
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Wrentit
09 11 00 11 11 11 11 00 00 00 00 00 11 00 00 00 11 11 00 11 Golden-crowned Kinglet
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Ruby-crowned Kinglet
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Red-breasted Nuthatch
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 White-breasted Nuthatch
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Pygmy Nuthatch
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Brown Creeper
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Blue-gray Gnatcatcher
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 California Gnatcatcher
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Rock Wren
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Canyon Wren
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 House Wren
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Marsh Wren
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Bewick's Wren
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Cactus Wren
13 11 00 11 11 00 11 11 11 11 00 11 11 00 11 11 11 11 00 00 American Dipper
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 European Starling
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 California Thrasher
13 00 00 11 11 11 11 11 11 11 11 00 11 11 11 00 11 00 11 00 LeConte's Thrasher
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Northern Mockingbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Western Bluebird
01 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 Mountain Bluebird
16 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 00 00 Townsend's Solitaire
01 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00 Varied Thrush
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Swainson's Thrush
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Hermit Thrush
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 American Robin
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Cedar Waxwing
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Phainopepla
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 House Sparrow
09 11 11 11 11 11 11 11 11 11 ........not countable........ Scaly-breasted Munia
01 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00 Red-throated Pipit
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 American Pipit
01 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 Evening Grosbeak
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 House Finch
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Purple Finch
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Cassin's Finch
13 11 00 11 00 00 11 11 11 11 11 00 11 00 11 11 11 11 11 00 Red Crossbill
15 00 11 11 00 11 00 11 11 11 11 11 11 11 11 11 11 11 11 00 Pine Siskin
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Lesser Goldfinch
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Lawrence's Goldfinch
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 American Goldfinch
04 00 00 00 00 00 00 11 00 00 00 00 00 11 11 00 00 11 00 00 Grasshopper Sparrow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Chipping Sparrow
03 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 11 11 00 00 Clay-colored Sparrow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black-chinned Sparrow
01 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 Field Sparrow
15 11 11 11 00 11 11 00 11 11 11 11 11 11 00 11 11 11 00 11 Brewer's Sparrow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black-throated Sparrow
18 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 11 Lark Sparrow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Fox Sparrow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Dark-eyed Junco
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 White-crowned Sparrow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Golden-crowned Sparrow
03 00 00 00 00 00 11 00 11 00 00 00 11 00 00 00 00 00 00 00 Harris' Sparrow
14 11 11 11 11 00 11 11 11 11 00 11 11 11 11 00 11 11 00 00 White-throated Sparrow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Bell's Sparrow
03 00 00 11 00 11 00 00 00 00 00 11 00 00 00 00 00 00 00 00 Vesper Sparrow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Savannah Sparrow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Song Sparrow
17 11 11 11 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 Lincoln's Sparrow
02 11 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 00 Swamp Sparrow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 California Towhee
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Rufous-crowned Sparrow
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Green-tailed Towhee
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Spotted Towhee
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Yellow-breasted Chat
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Yellow-headed Blackbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Western Meadowlark
03 00 00 00 00 00 00 00 11 11 00 11 00 00 00 00 00 00 00 00 Orchard Oriole
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Hooded Oriole
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Bullock's Oriole
01 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 00 00 Baltimore Oriole
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Scott's Oriole
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Red-winged Blackbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Tricolored Blackbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Brown-headed Cowbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Brewer's Blackbird
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Great-tailed Grackle
02 00 00 00 00 00 11 00 00 00 11 00 00 00 00 00 00 00 00 00 Northern Waterthrush
05 00 00 00 00 00 00 11 11 11 00 00 00 11 00 00 11 00 00 00 Black-and-white Warbler
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 Tennessee Warbler
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Orange-crowned Warbler
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Nashville Warbler
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 MacGillivray's Warbler
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Common Yellowthroat
01 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 Hooded Warbler
02 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 11 00 00 00 American Redstart
03 00 11 11 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 Northern Parula
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Yellow Warbler
01 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 Chestnut-sided Warbler
11 11 11 11 11 00 00 00 11 11 11 00 11 11 00 00 00 11 00 11 Palm Warbler
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Yellow-rumped Warbler
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black-throated Gray Warbler
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Townsend's Warbler
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Hermit Warbler
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Wilson's Warbler
01 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Red-Faced Warbler
01 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 Painted Redstart
07 00 00 11 00 00 00 00 00 00 11 11 00 11 00 11 11 00 00 11 Summer Tanager
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Western Tanager
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Black-headed Grosbeak
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Blue Grosbeak
19 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Lazuli Bunting
02 00 00 00 11 00 00 00 00 11 00 00 00 00 00 00 00 00 00 00 Indigo Bunting
Total: 348 species
If you look closely you'll see that we flagged willow flycatcher and black swift as "suspect." We no longer believe earlier records of Willow Flycatcher and Black Swift because those species don't usually occur before the end of the first week of May and because we neglected to request documentation when they were reported in 2004-2007. Having said that...it's intriguing that credible reports of both species turned up only two days (black swift) and five days (willow flycatcher) after this year's count.
Of the species we've found to date, we have found the same ~200 every year, accounting for about 60% of our annual average.
We have also found 28 species only once (excluding recently added non-native parakeets), indicating that about 8% are "one-hit wonders." Examples from previous years include Crested Caracara, Ridgeway's rail, yellow-billed loon, field sparrow, ruff, red-throated pipit, evening grosbeak, and red-faced warbler.
There are also numerous species that we find about 1/2 of the time, probably a consequence of the fact that we schedule the event in late April when wintering birds are leaving and when many spring migrants are just arriving.
Even though some species are reported nearly every year, there are a number that we struggle to find, and it's often through the dedicated efforts of a few people that we find them. Typical examples include Praire falcon, LeConte's thrasher, Clark's nutcracker, Williamson's sapsucker, and flammulated owl. Of those four, this year we found only the falcon and the sapsucker.
Here are species we found that were particularly notable: (Found less than or equal to five times previously and not introduced).
01 Tundra Bean-Goose
03 White-winged Scoter
03 Long-tailed Duck
04 Pacific Golden-Plover
03 Red Phalarope (not listed as "rare" in eBird. Perhaps it should be)
02 Lesser Black-backed Gull
01 Red-Footed Booby
04 Neotropic Cormorant. Becoming regular, but still recent.
04 Dusky-Capped Flycatcher
02 Swamp Sparrow
Once again, the number in the first two columns gives the number of years when we have found this species since 2004.
As mentioned above, yellow-crowned night-heron appears to be more regular and we've found it on the last six counts. Given the explosive increase in neotropic cormorant numbers, those have become regular as well.
What were our worst misses
Here's a list of species we didn't find that were found at least 11 times previously:
17 Brant
17 Wood Duck
14 Gambel's Quail
14 Chuckar
11 Horned Grebe
15 Common Ground-Dove
18 Ruddy Turnstone
13 Pink-Footed Shearwateer
12 Flammulated Owl
17 Northern Pygmy-Owl
14 Burrowing Owl
16 Spotted Owl
11 Plumbeous Vireo
16 Clarks' Nutcracker
13 LeConte's Thrasher
15 Pine Siskin
Of these, Ruddy Turnstone was the most surprising. We had good coverage at places where they occur so it wasn't for lack of effort. We also tried hard for Wood Duck and Brant. We didn't have coverage on San Clemente Island for the first time in many years, hence our inability to find Gambel's Quail and Chukar (the island is the only place in LA County where they occur regularly).
As mentioned previously, we came up short with owls this year. There was considerable effort to find northern pygmy owl. Perhaps they didn't fare well due to harsh weather this past winter Access to Flammulated Owl habitat was quite limited, but there was still a search near Big Pines, but it came up empty. This was the first year that we got northern saw-whet owl on Catalina Island where they are relatively common this spring.
Due to closure of the Angeles Crest Highway between the Mt. Wilson Road and Big Pines, I expected us to struggle in the mountains. However, due to heroic efforts from several dedicated teams, we actually did really well.
Here's a list of species that we missed in 2023 by about one week or less before or after the count. Most were extracted from eBird:
2023 Near-Misses: +- one week
Hooded Merganser: found shorly before and shorly after
Gambel's Quail
Chukar
Horned Grebe
Black Swift: Found two days after
American Oystercatcher
Ruddy Turnstone: Found one day after.
Cassin's Auklet
Franklin's Gull
Black Tern
Common Tern: Reported; I don't know if it was confirmed
Least Bittern: Yes, we checked!
California Condor
Blue-headed Vireo: Missed by a couple of days. Rats..
Purple Martin
LeConte's Thrasher: Found a few days before and two days after
Sage Thrasher: Found a few days before. We've never gotten one on ABC weekend.
Pine Siskin: Widely reported in the week after the count
Harris's Sparrow: Missed by two days.
Baltimore Oriole
Northern Waterthrush
Black-and-white Warbler
Tennessee Warbler
Hooded Warbler: Arg... Just missed it.
Northern Parula
Summer Tanager
N = 25
Given the number of new species that we find each year, which species might be next
With our previous experience we certainly didn't expect to add Tundra Bean-Goose, but I suppose red-footed booby was in the realm of possiblity given that there have been modest numbers along the coast in recent months.
We've missed broad-winged hawk by less than one week on multiple occasions, so we should find it eventually. Brown Boobies are increasing in abundance and are sometimes reported fairly often, so we should sweep one up. I'm surprised that we haven't found reddish egret yet given that they have been reported close by in Orange County at Bolsa Chica in previous years. Despite these predictions, the rarities we find suggests something not mentioned above is at least as likely to turn up. For example, in previous summary emails I never expected a Bean Goose.
It seems inevitable that more exotics will be added to the state list by the California Bird Records Committee and thus become countable. Species that might be added in the not-too-distant future include Egyptian goose, Swinhoe's White-eye, and perhaps Pin-tailed Whydah. Since last year, Nanday Parakeet and Red-masked Parakeet have been added and we found both this year. For a discussion, please check the CBRC website at:
https://www.californiabirds.org/CBRC%20Annotated%20Watch%20List_Mar2022.pdf
We have started to keep track of uncountable, non-native species that we find, but we didn't attempt to organize dedicated searches.
Here are the ones that were reported, in no particular order:
Yellow-headed Parrot
Pin-tailed Whydah
Muscovy Duck
Swinhoe's White-eye
Northern Cardinal
Egyptian Goose
Indian Peafowl
Yellow-headed Parrot
European Goldfinch
Red-lored Parrot
How many more species could we find during this count We've already found 277 species twice, and 275 species once, so 280 species is probably within reach if we are have really good luck. 285 species might be attainable...particularly if the CBRC continues to add introduced species to the state list. Finding more than that is probably very unlikely even if we dramatically increase our organization and level of effort because we're already up against the limit of the number of birds regularly in the area at this time of year.
The significance of "America's Birdiest County" has grown considerably since we started in 2003. It's become much more than a friendly competition with other counties and has turned into a educational event that continues to improve our body of knowledge of the status and distribution of birds in our area. Knowledge of where birds are has grown to the point that we usually find most species that are very local. Although there are other events during the year such as Christmas Bird Counts and the Great Backyard Bird Count, there aren't many events in the spring when migration is in full swing. As such, we've been obtaining a detailed sample for 20 years at a time of year when few other surveys occur. Now, however, the Bear Divide Migration Count, which has become a regular event, is providing another means for assessing species in this area in a systematic way. There are also suggestions from Richard Crossley's observations in Gorman that regular surveys there could also yield very important results.
As mentioned above, ABC weekend is also documenting changes, both positive and negative, in the avifauna in our area for species such as vermilion flycatcher, neotropic cormorant, yellow-crowned night-heron, zone-tailed hawk, tricolored blackbird, American Dipper, and burrowing owl.
Most of our participants use eBird to archive their observations and many people are uploading photos and audio recordings, which makes the reports considerably more valuable. Every year during ABC weekend there's a significant increase in the number of records entered into eBird. We scour eBird for reports that weren't submitted to us or posted on listserves. This often adds 2-4 species after the count that we would otherwise miss. This year most of the species were reported directly to us but I also found at least 20 by checking eBird.
Use of eBird is making an increasingingly important contribution to ornithology worldwide. eBird data is appearing in a rapidly-increasing number of peer-reviewed publications in prominent scientific journals and it's having a pronounced impact on many areas of bird conservation. Articles that discuss results from eBird have appeared many times in some of the highest-impact peer reviewed scientific journals, and eBird is widely considered to be among the most important community science projects in existence.
Thank you again to everyone who contributed!
Best wishes,
Lance
Lance Benner
Altadena |