Date: 4/25/25 9:47 pm
From: eBird alert via groups.io <alert.ebird...>
Subject: [slocobirding] [eBird Alert] San Luis Obispo County Rare Bird Alert
*** Species Summary:

- Cackling Goose (2 reports)
- Laughing Gull (1 report)
- Short-billed Gull (1 report)
- Iceland Gull (Thayer's) (1 report)
- Bank Swallow (3 reports)
- Hermit Thrush (2 reports)

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Thank you for subscribing to the <daily> San Luis Obispo County Rare Bird Alert. The report below shows observations of rare birds in San Luis Obispo County. View or unsubscribe to this alert at https://ebird.org/alert/summary?sid=SN36231
NOTE: all sightings are UNCONFIRMED unless indicated.

eBird encourages our users to bird safely, responsibly, and mindfully. Please follow the recommendations of your local health authorities and respect any active travel restrictions in your area. For more information visit: https://ebird.org/news/please-bird-mindfully

Cackling Goose (Branta hutchinsii) (1)
- Reported Apr 25, 2025 16:20 by Trevor Wimmer
- Morro Bay SP--Marina/Boardwalk Trail, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.8418006&<ll...>,-120.8418006
- Checklist: https://ebird.org/checklist/S229395203
- Comments: "Continuing. Small goose associating with CAGO."

Cackling Goose (Branta hutchinsii) (1)
- Reported Apr 25, 2025 16:20 by Allison Pengilley-Wimmer
- Morro Bay SP--Marina/Boardwalk Trail, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.8418006&<ll...>,-120.8418006
- Checklist: https://ebird.org/checklist/S229395632
- Comments: "Continuing. Small goose associating with CAGO."

Laughing Gull (Leucophaeus atricilla) (1) CONFIRMED
- Reported Apr 22, 2025 12:12 by Kevin Zimmer
- Oceano: Pismo State Beach, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.631304&<ll...>,-120.631304
- Checklist: https://ebird.org/checklist/S229077623
- Media: 20 Photos
- Comments: "I assume this is the same bird first reported by KH and/or RC some time back. It was not right at Arroyo Grande Creek mouth (where most recently reported), but in with a large concentration of other gulls and shorebirds farther south along the beach. Not present on my first pass, but got it on the drive back north. Photos to follow."

Short-billed Gull (Larus brachyrhynchus) (1) CONFIRMED
- Reported Apr 22, 2025 12:12 by Kevin Zimmer
- Oceano: Pismo State Beach, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.631304&<ll...>,-120.631304
- Checklist: https://ebird.org/checklist/S229077623
- Media: 13 Photos
- Comments: "Worn 1st-cycle bird with very bleached wing-coverts forming a large white panel in the folded wing. Very petite bill (short and slender) compared to California and Ring-billed gulls in vicinity, with darker gray on mantle than RBGU, more brown-washed on body, with browner primaries, dark eyes, different wing and tail pattern, etc. Late, lingering bird."

Iceland Gull (Thayer's) (Larus glaucoides thayeri) (1) CONFIRMED
- Reported Apr 20, 2025 08:04 by Kevin Zimmer
- Morro Creek mouth, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.8624411&<ll...>,-120.8624411
- Checklist: https://ebird.org/checklist/S229092304
- Media: 11 Photos
- Comments: "First reported by others a few days prior, and since, seen and photographed by multiple observers. Worn, late 1st-cycle bird transitioning to 2nd-cycle. Photos to follow."

Bank Swallow (Riparia riparia) (1)
- Reported Apr 25, 2025 11:08 by Herb Elliott
- Atascadero Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6667256&<ll...>,-120.6667256
- Checklist: https://ebird.org/checklist/S229384478
- Comments: "*Early and not expected at this location. Continuing. Seen only a few times, ridiculously difficult to pick out and keep track of amongst the masses of swallows. Small dark chocolate brown swallow similar in profile and structure to VGSW and TRSW with contrasting chestband and white wrapping around auriculars. Not able to get photos."

Bank Swallow (Riparia riparia) (1)
- Reported Apr 25, 2025 11:08 by Reef Comer
- Atascadero Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6667256&<ll...>,-120.6667256
- Checklist: https://ebird.org/checklist/S229422717
- Comments: "*Early and not expected at this location. Continuing. Seen only a few times, ridiculously difficult to pick out and keep track of amongst the masses of swallows. Small dark chocolate brown swallow similar in profile and structure to VGSW and TRSW with contrasting chestband and white wrapping around auriculars. Not able to get photos."

Bank Swallow (Riparia riparia) (1)
- Reported Apr 24, 2025 11:15 by Pair of Wing-Nuts
- Atascadero Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6667256&<ll...>,-120.6667256
- Checklist: https://ebird.org/checklist/S229180657
- Media: 4 Photos
- Comments: "This species was first reported at this location several days earlier (Kevin Zimmer) and we were first alerted by its distinct call three different times during about a 15 minute period. This call was a grating, sharp trrrt delivered in a series of raspy bursts. The call was easily distinguished from Northern Rough-winged Swallow's buzzy, rolling treep (a call with a common nickname that won't be included here) and the shorter, softer notes of vocalizing Tree Swallows in the vicinity. Though not high quality, the heavily cropped photos below of this comparably small swallow show all white underside with complete breast-band (though mid-point breast-band extension towards belly not discernible in photo), clear, white throat, dark eye area extending down into white auriculars, long tail, relatively narrow, pointed wings and vent-band that can be present on this this species."

Hermit Thrush (Catharus guttatus) (1)
- Reported Apr 25, 2025 06:48 by Reef Comer
- West Cuesta Ridge, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.661226&<ll...>,-120.661226
- Checklist: https://ebird.org/checklist/S229422727
- Comments: "*Late. Apparently ongoing bird now sticking past expected departure date. Heard and seen briefly on the ridge past Jay’s BCSP spot. Medium-sized brownish cathy giving typical chup-chup calls. Presumably expected guttatus group (slevini?). Not able to get pics as it flew down into the canyon and never came back up."

Hermit Thrush (Catharus guttatus) (1)
- Reported Apr 25, 2025 06:48 by Herb Elliott
- West Cuesta Ridge, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.661226&<ll...>,-120.661226
- Checklist: https://ebird.org/checklist/S229384526
- Comments: "*Late. Apparently ongoing bird now sticking past expected departure date. Heard and seen briefly on the ridge past Jay’s BCSP spot. Medium-sized brownish cathy giving typical chup-chup calls. Presumably expected guttatus group (slevini?). Not able to get pics as it flew down into the canyon and never came back up."

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