Date: 10/16/25 12:18 pm
From: Thomas Benson via groups.io <tbenson...>
Subject: [inlandcountybirds] Southeastern CA RBA: October 16, 2025
RBA

* California
* Southeastern
* October 16, 2025
* CASE25.10.16

This is the Southeastern CA weekly RBA summary. We cover Imperial, Riverside, and San Bernardino Counties. California Bird Records Committee review species are denoted by asterisks. To report a bird POST TO INLANDCOUNTYBIRDS (https://groups.io/g/inlandcountybirds). If there is some reason that you cannot post there, please e-mail or call/text Tom Benson at <tbenson...> or (909) 648-0899.

Today's RBA is dedicated to the memory of Gene Cardiff, who found many rare birds in southeastern California in his lifetime, but especially in San Bernardino County. May he rest in peace.


Birds mentioned:

Parasitic Jaeger
Sabine's Gull
Blue-footed Booby
Gray Catbird
Brown Thrasher
Hooded Warbler
Bay-breasted Warbler
Blackburnian Warbler
Scarlet Tanager


SAN BERNARDINO COUNTY

A BROWN THRASHER continued at Big Morongo Canyon Preserve through Oct 12 (Dan Ward).

A HOODED WARBLER was seen at Granite Mountains Research Station on Oct 10 (Tim Miller).

A BAY-BREASTED WARBLER was seen at Glen Helen Regional Park on Oct 12 (Ruslan Balagansky).

A BLACKBURNIAN WARBLER continued at Fort Irwin through Oct 15 (Matt Gould).

A SCARLET TANAGER was seen at Big Morongo Canyon Preserve on Oct 15 (Kate Peterlein).


RIVERSIDE COUNTY

A GRAY CATBIRD continued on private property in Moreno Valley through Oct 11 (David Rankin).


IMPERIAL COUNTY

Up to three SABINE'S GULLS and two PARASITIC JAEGERS continued near the west end of Young Road through Oct 15 (Deanna McLaughlin).

A BLUE-FOOTED BOOBY was seen near the west end of Young Road on Oct 15 (Deanna McLaughlin).


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Birds included in this weekly summary are those that are considered casual or of less than annual occurrence in San Bernardino, Riverside, or Imperial Counties, or in some cases regionally within these areas. If you do find or see something of interest, whether it be a geographical or seasonal rarity, evidence of local range expansion, or a novel breeding record, I'd recommend sharing that information with the CBRC, North American Birds subregional editors, or regional listservs as appropriate. Information for contacting these entities is available below.

Please submit your documentation of all California Bird Records Committee review species (denoted by asterisks) to CBRC Secretary Tom Benson at <secretary...> or via the CBRC website: https://www.californiabirds.org/report_sighting.html

CBRC review species and birds of local or seasonal rarity should be reported to the North American Birds (https://www.aba.org/north-american-birds/) county coordinators. They are:

IMPERIAL COUNTY: Guy McCaskie, <guymcc...>
INYO COUNTY: Chris and Rosie Howard, <chris93514...>
KERN COUNTY: Kelli Heindel-Levinson, <kkheindel...>
RIVERSIDE COUNTY: David Rankin, <david.rankin...>
SAN BERNARDINO COUNTY: Alexander E. Koonce, <sandy_koonce...>

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Other dying birding listservs that occasionally include reports of birds in southern California are:

Inyo County: https://groups.google.com/forum/#!forum/easternsierrabirds
Kern County: https://groups.io/g/kerncobirding
Los Angeles County: https://groups.io/g/LACoBirds
Orange County: https://groups.io/g/orangecountybirding
San Diego County: https://groups.io/g/SanDiegoRegionBirding
San Luis Obispo County: https://groups.io/g/slocobirding
Santa Barbara County: https://sbcobirding.groups.io/g/main
Ventura County: https://groups.io/g/venturacobirding
California (statewide): https://groups.io/g/CALBIRDS

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A schedule of San Bernardino Valley Audubon Society field trips is available on the SBVAS website at https://www.sbvas.net/field-trips

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Bird status and distribution references that every southeastern California birder should own:

Birds of southern California: status and distribution (1981), by Kimball L. Garrett and Jon L. Dunn
Birds of the Salton Sea: status, biogeography, and ecology (2003), by Michael A. Patten, Guy McCaskie, and Philip Unitt (update: https://archive.westernfieldornithologists.org/archive/V56/56(2)-p126-p142.pdf)
Birds of the Lower Colorado River Valley (1991), by Kenneth V. Rosenberg, Robert D. Ohmart, William C. Hunter, and Bertin W. Anderson




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