Date: 9/20/25 3:01 pm
From: Naresh Satyan via groups.io <naresh.satyan...>
Subject: [LACoBirds] LA River Fall shorebird survey 2025: Day 3 results
Hi all,

Our third and final day of the annual shorebird survey of the LA river this
fall was on Saturday September 20. The results are here:
https://ebird.org/tripreport/413388

Previous reports from this year:
Day 1 (August 10): https://ebird.org/tripreport/401630
Day 2 (August 30): https://ebird.org/tripreport/406934

All three days had the same coverage. It was a clear day today, with
temperatures from the mid 60s closer to the coast to a hot and muggy 85 F
inland. We had clear skies and no winds. The water level in the river
remains very high, with mudflats present last month now completely
submerged. Shorebirds were patchily distributed along the river. Some
stretches had nothing -- I had more Turkey Vultures than shorebirds in the
Sepulveda basin/Burbank areas and Mark Wilson, counting in Cudahy and South
Gate, wanted a refund -- while other stretches were productive. We found
increased numbers of shorebirds as we progressed further into fall
migration. Dick Barth had four Baird's Sandpipers in the Paramount area,
and there were three Pectoral Sandpipers at various places.

The season's results are tabulated at the bottom of this email.

It may also be interesting to compare with the results of previous years'
surveys. The results of these annual surveys are on the LA Birders website
here:
https://www.labirders.org/science_projects/la_river_shorebird_survey.html
-- scroll down to the spreadsheet at the bottom of the page.

Thanks again to the birders who participated today: Jeff Boyd, Jon Fisher,
Sam Bressler, Lance Benner, Dick Barth, Mark Wilson, Mark and Janet Scheel,
and Andy Birch. We hope to do this again next fall.

Regards,
Naresh

Date 10-Aug-25 30-Aug-25 20-Sep-25
Conditions 63-73 F, marine layer over much of the survey area, mostly calm.
The tide was a relatively low at the river mouth. 67-85 F, clear skies, no
wind. High tide +3.5 to +4 ft at the river mouth 66-85 F, clear skies,
humid and muggy inland, no wind for much of the morning. High tide +4.0 to
+5.0 ft at the river mouth
Comments Water levels in the river were fairly high throughout the survey
area, with strong flow in the central channel. Water levels in the river
were fairly high throughout the survey area, with strong flow in the
central channel. Active Peregrine Falcons in the most productive areas of
the river Water levels in the river were very high throughout the survey
area, with quite a bit of vegetation, and shorebirds distributed unevenly

Black-necked Stilt 1433 1312 1225
American Avocet 17 8 1
Black Oystercatcher 5 1 0
Black-bellied Plover 0 0 1
Semipalmated Plover 0 25 13
Killdeer 145 120 144
Whimbrel 5 12 11
Long-billed Curlew 0 0 0
Marbled Godwit 0 0 0
Baird's Sandpiper 0 1 4
Least Sandpiper 878 1437 2221
Pectoral Sandpiper 0 0 3
Semipalmated Sandpiper 0 0 0
Western Sandpiper 21 132 1005
peep sp. 10 42 33
Short-billed Dowitcher 0 27 0
Long-billed Dowitcher 121 135 37
Short-billed/Long-billed Dowitcher 0 70 40
Wilson's Snipe 0 0 0
Wilson's Phalarope 1 0 0
Red-necked Phalarope 0 0 0
Spotted Sandpiper 22 29 30
Solitary Sandpiper 0 2 0
Greater Yellowlegs 52 72 64
Willet 69 62 42
Lesser Yellowlegs 1 5 6
shorebird sp. 0 0 0
--
Naresh Satyan
Pasadena, CA


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