RBA
* California * Orange County * April 21, 2023 * CAOC23.04.21
This is the Orange County, CA weekly Rare Bird Alert (RBA) and local events summary. California Bird Records Committee (CBRC) review species are capitalized and marked with asterisks below. All documentation of review species should be forwarded to the CBRC secretary, Tom Benson, at secretary@... .
BIRDS MENTIONED
Black Scoter Calliope Hummingbird Neotropic Cormorant Cattle Egret Bald Eagle Lewiss Woodpecker Brown-crested Flycatcher Townsend's Solitaire Brewers Sparrow Swamp Sparrow Green-tailed Towhee Yellow-headed Blackbird Baltimore Oriole Black-and-White Warbler Tennessee Warbler American Redstart Northern Parula Bay-breasted Warbler Black-throated Green Warbler

A BLACK SCOTER was seen off Sunset Beach in Huntington Beach on April 15 and April 16.
An adult male CALLIOPE HUMMINGBIRD continued at Moulton Meadows Park in Laguna Beach through April 15.
A NEOTROPIC CORMORANT was photographed at Yorba Regional Park in Anaheim on April 19.
A pair of CATTLE EGRETS were at Huntington Central Park in Huntington Beach on April 14 and April 15. Another bird was at Anaheim Coves Park on April 18.
A BALD EAGLE continued at Upper Newport Bay Ecological Reserve in Newport Beach this week.
A LEWISS WOODPECKER was reported during a survey in Limestone Canyon on April 19. A BROWN-CRESTED FLYCATCHER continued at the Chrisanta Drive Railroad Track through April 18.
A few TOWNSENDS SOLITAIRES were reported this week. Two up in the mountains around Blue Jay Campground and Los Pinos Trailhead and another one at Oak Canyon Nature Center in Anaheim on April 14.
A BREWERS SPARROW was at Esencia Sports Park & Orchard Loop Trail in Rancho Mission Viejo on April 20.
A SWAMP SPARROW continued at Esencia Sports Park in Rancho Mission Viejo through April 17.
A GREEN-TAILED TOWHEE was at Esencia Sports Park in Rancho Mission Viejo on April 20. Another bird was reported from Huntington Central Park in Huntington Beach on April 15.
A flock of 10 YELLOW-HEADED BLACKBIRDS were reported from a private residence in Huntington Beach on April 20.
A BALTIMORE ORIOLE continued in Lot G at Mile Square Regional Park in Fountain Valley through April 17. A BLACK-AND-WHITE WARBLER continued at Huntington Central Park in Huntington Beach through April 20, while another continued at Aurora Park in Mission Viejo on April 16.
A TENNESSEE WARBLER was at Laguna Niguel Regional Park in Laguna Niguel on April 20.
An AMERICAN REDSTART continued at Huntington Central Park in Huntington Beach behind the amphitheater through April 20.
A NORTHERN PARULA continued at Del Obispo Park in Dana Point through April 18.
A BAY-BREASTED WARBLER continued at Gum Grove Park in Seal Beach through April 21.
A BLACK-THROATED GREEN WARBLER continued at Estancia Park in Costa Mesa through April 17.

LOCAL EVENTS
For a complete up-to-date list of current field trips, please visit the webpage on Sea and Sages website: https://wp.seaandsageaudubon.org/home-sas/field-trip-2/#FTSchedule
The next Upper Newport Bay Bird Walk will take place on April 30 from 8:00am to 11:00am.
The next San Joaquin Wildlife Sanctuary Bird Walk will take place on May 14 from 8:00am to 11:00am,
The next Bolsa Chica Wetlands walk will take place on May 18 from 8:00am to 12:00pm.

BIRDING WORKSHOPS AND CLASSES
None just yet but an advanced shorebirds class is planned for this spring, potentially starting this month although nothing is set in concrete yet.

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The Orange County RBA and events summary is produced weekly by Ryan Winkleman and Jeff Bray in collaboration with Doug Willick. Sightings of rare birds can be posted to the OrangeCountyBirding listserv, emailed directly to Jeff Bray ( jbray3928@... ) and/or Ryan Winkleman ( rswinkleman@... ), and/or submitted to eBird ( http://ebird.org/content/ebird ). Any supporting details (descriptions, photos, audio recordings, etc.) of rare sightings that are not already disclosed on the listserv or on eBird should also be emailed to Ryan Winkleman separately for consideration to be mentioned in the current quarterly report for North American Birds.
Those sightings that are included in this summary generally include those that are considered rare (regionally or seasonally) for Orange County based on "The Birds of Orange County: Status and Distribution" (Hamilton and Willick), "Birds of Southern California" (Garrett and Dunn), and/or more contemporary changes in local or regional status and distribution. Rarities that regularly or seasonally occur at a particular location, such as annually wintering rarities on Seal Beach National Wildlife Refuge, may or may not be included in this digest, but reports of these same species occurring at other, atypical locations throughout the county may be included. We don't include hybrids, subspecies, introduced or exotic birds, or in most cases and for no real reason, geese. All bird reports are vetted to the extent possible prior to each publication, but in the interest of sharing information, the accuracy of any given report cannot always be guaranteed, nor can the presence of any given bird for those who choose to chase after them.
Information on upcoming local events is taken largely from the Sea and Sage Audubon website ( http://www.seaandsageaudubon.org/ ). Sea and Sage Audubon is based out of the Audubon House at the San Joaquin Wildlife Sanctuary in Irvine. They sponsor a number of public field trips, special birding events, conservation lectures, and social gatherings throughout the year. Information regarding upcoming local events should be considered accurate at the time of this posting. However, for the most current information please refer to the field trip list on the Sea and Sage Audubon website at https://wp.seaandsageaudubon.org/home-sas/field-trip-2/#FTSchedule . It is also recommended that you refer to that website immediately prior to engaging in any field trip to confirm that trips are still occurring. If you know of additional upcoming events that are not sponsored directly by Sea and Sage Audubon, please email Ryan Winkleman and/or Jeff Bray for inclusion. #RBA
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Jeff Bray
Irvine, CA