Date: 9/7/17 8:17 am
From: Jeff Bray <jbray4913...> [OrangeCountyBirding] <OrangeCountyBirding-noreply...>
Subject: [OrangeCountyBirding] Orange County RBA: September 7, 2017

* California

* Orange County

* September 7, 2017

* CAOC17.09.07

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


Magnificent Frigatebird


Baird's Sandpiper

Solitary Sandpiper

Northern Waterthrush

Lucy's Warbler

Yellow-headed Blackbird

Tricolored Blackbird

At least two MAGNIFICENT FRIGATEBIRDS were photographed, with presumably
the same juvenile bird moving back and forth between Bolsa Chica,
Huntington Central Park, and Upper Newport Bay on August 31, and an
apparent adult male bird observed at Bolsa Chica on September 4. Bolsa
Chica is typically the most reliable location to find this species in
Orange County, but most birds are flyovers that don't hang around long
enough to be chaseable.

A RUFF that was found on the Santa Ana River on August 16 continued through
September 5, most commonly just downstream of the Imperial Highway Bridge.

A BAIRD'S SANDPIPER was present in the groundwater recharge channel (the
channel north of the big berm) of the Santa Ana River about 1/4 mile west
of the Lakeview Bridge on September 5.

SOLITARY SANDPIPERS continue to be seen around the county. Recent reports
have been along the Santa Ana River in Anaheim between Tustin and Lakeview
and also between Lakeview and Imperial, Wintersburg Channel in Huntington
Beach around the Springdale bridge and at San Joaquin Wildlife Sanctuary.

A NORTHERN WATERTHRUSH was found at Huntington Central Park in Huntington
Beach on September 2. It continued through September 6. This bird is likely
a returning bird and should be around throughout the fall and winter season
again. It’s usually found by its loud metallic “chink” notes. Birders have
observed it around the NE corner of the lake and also the SE corner of the
“Jack Green Area”. If you’re confused about the names of these places at
the park, you’re not alone. Someone should make a map… Most recent GPS
location for the bird was 33.706540, -118.004856

A LUCY’S WARBLER that was found at Huntington Central Park in Huntington
Beach on August 21 continued through September 4. It has been difficult to
find but has most often been observed working the eucalyptus trees along
Loren's Ditch, in the area immediately west of the maintenance yard.

Up to six YELLOW-HEADED BLACKBIRDS have been photographed in the
groundwater recharge channel (the channel north of the big berm) along the
Santa Ana River in Anaheim between Tustin and Lakeview as recently as
September 3.

A TRICOLORED BLACKBIRD was photographed at Heritage Park in Irvine on
September 5. It was associating with the local flock of Red-winged and
Brewer’s Blackbirds.



The monthly San Joaquin Wildlife Sanctuary bird walk will take place on
September 10 from 8:00am to 12:00pm. Meet at the Audubon House.

The monthly Bolsa Chica bird walk will take place on September 21 from
8:00am to 12:00pm. Meet at the Harriet Wieder Park lot.

The monthly Upper Newport Bay bird walk will take place on September 24
from 8:00am to 11:00am. Meet at the Big Canyon parking lot.


The next Upper Newport Bay pontoon boat trip will take place on September
20 from 8:15am to 11:00am. Email Nancy Kenyon at <nancykenyon...> to
sign up.

The Sea and Sage Audubon fall pelagic trip will take place on September 30
from 6:30am to 3:00pm. Email Nancy Kenyon at <nancykenyon...> to sign up.


Make plans to attend the Sea and Sage Audubon General Meeting on September
15 at 7:30pm, where Sylvia Gallagher will present a birding quiz night
consisting of both photos and sounds. The quiz will be divided into thirds
between very easy, intermediate, and very hard questions.

The Birds of Southern California Introductory Birding Skills Workshop will
begin on October 4 and continue through December 14. The weekly classes
will be held at Sylvia Gallagher's home in Huntington Beach and will
emphasize visual identification for beginning birders. Refer to the
following link for enrollment information:


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 (<jbray4913...>) and/or Ryan Winkleman (
<rswinkleman...>), and/or submitted to 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 Doug
Willick <atdoug.willick...>

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, are not
included in this digest, but reports of these same species occurring at
other, atypical locations throughout the county may be included. 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 ( 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 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

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