Date: 11/10/25 12:29 pm
From: eBird alert via groups.io <alert.ebird...>
Subject: [slocobirding] [eBird Alert] San Luis Obispo County Rare Bird Alert
*** Species Summary:

- American Herring x Glaucous-winged Gull (hybrid) (1 report)
- Least Bittern (1 report)
- Chipping Sparrow (2 reports)
- Dark-eyed Junco (Slate-colored/cismontanus) (1 report)
- Savannah Sparrow (Large-billed) (1 report)
- Yellow-headed Blackbird (1 report)
- Baltimore Oriole (1 report)
- Black-and-white Warbler (1 report)
- Orange-crowned Warbler (sordida) (1 report)
- Bay-breasted Warbler (12 reports)
- Yellow-rumped Warbler (Myrtle x Audubon's) (1 report)

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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 safe, responsible birding. Some reports may be from private property. Respect access restrictions and follow the rules wherever you bird. For more information, visit the eBird and Merlin Community Guidelines: https://ebird.org/community-guidelines. Stay connected to the global birding community with eBird Updates: https://mailchi.mp/cornell/ebird-updates-sign-up-page.

American Herring x Glaucous-winged Gull (hybrid) (Larus smithsonianus x glaucescens) (1)
- Reported Nov 05, 2025 07:37 by Ann Stockert
- 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/S283027926
- Media: 7 Photos
- Comments: "1st-cycle. Entirely pale Gull similar to (pure) GWGU but wings slightly thinner, underside of con coloro us pale primaries with faint dark tips, primaries with faint trace of brown outer webs, faint pale window in inner primaries, essentially pale secondaries, underparts brownish ground color, paler contrasting (with underparts) undertail and undertail coverts and head which is faintly streaked, overall fiercer look than GWGU with more AHGU-like head shape, and Herring-like bill with pale base (not expected in pure GWGU at this time of year). The pale bill base may/may not be obvious in the photos unfortunately. Photos"

Least Bittern (Botaurus exilis) (1)
- Reported Nov 09, 2025 08:02 by Nick & Jane
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283803900
- Comments: "Calling kyaaakakakak"

Chipping Sparrow (Spizella passerina) (3)
- Reported Nov 10, 2025 06:59 by Kathleen Kent
- Oakview Village, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.660672&<ll...>,-120.660672
- Checklist: https://ebird.org/checklist/S283897057
- Comments: "I saw about 3 CHSPs in one location and may have gotten distant ID photos of at least one. Merlin picked up vocalizations of the sparrow in several other locations, but I’m only counting the three that I saw."

Chipping Sparrow (Spizella passerina) (3) CONFIRMED
- Reported Nov 09, 2025 07:07 by Kathleen Kent
- Oakview Village, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.660672&<ll...>,-120.660672
- Checklist: https://ebird.org/checklist/S283749330
- Comments: "I saw about 3 CHSPs in one location and got very distant photos of at least one. Merlin picked up vocalizations of of the sparrow in several other locations, but only counting the three that I saw."

Dark-eyed Junco (Slate-colored/cismontanus) (Junco hyemalis hyemalis/carolinensis/cismontanus) (1)
- Reported Nov 09, 2025 08:02 by Nick & Jane
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283803900
- Media: 5 Photos
- Comments: "Appeared to be a first-year as it wasn’t yet a dark slate grey. The hood went down far on the chest, the back and head was grey, as were its flanks. But there were hints of brown, which makes me think cismontanus, though could simply be a young slate-colored. Associating with junco flock in eucs along fence north of entrance to paved loop, and then again amid cypress trees to the east on north side of road from mid-dock area. Mediocre photos"

Savannah Sparrow (Large-billed) (Passerculus sandwichensis rostratus/atratus) (1)
- Reported Nov 09, 2025 11:34 by Alexander Yan
- 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/S283777418
- Media: 4 Photos
- Comments: "Photos. Found near the western side of the broad walk. Approximately 35.34439° N, 120.84251° W"

Yellow-headed Blackbird (Xanthocephalus xanthocephalus) (1)
- Reported Nov 06, 2025 14:20 by David Lawrence
- Cal Poly--Mt Bishop Road, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6777764&<ll...>,-120.6777764
- Checklist: https://ebird.org/checklist/S283757048
- Media: 1 Photo
- Comments: "Single adult female in with mixed blackbird flock at Beef Evaluation Unit. Slightly larger than all other species around. Very dark overall but not as black as other species around. Black eye mask with yellow brows, yellow collar, face, and neck, bright yellow/orangish chest. Crown dark but not black above prominent yellow brows."

Baltimore Oriole (Icterus galbula) (1)
- Reported Nov 10, 2025 08:56 by Ann Stockert
- Mentone Basin Park, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6132531&<ll...>,-120.6132531
- Checklist: https://ebird.org/checklist/S283907417
- Comments: "**Very rare. Fairly cooperative HY male in Pacific Madrones and nearby flowering trees in SW corner of park. Bright orange Oriole with only slightly paler (and still orange) lower belly/vent, slight dusky olive wash to head, bright white double wingbars lacking “teeth”, upper wing at slightly tinged buff, back dusky olive brown color, and slightly dark throat. Still in same general location when we left. Pics"

Black-and-white Warbler (Mniotilta varia) (1)
- Reported Nov 09, 2025 10:03 by Pair of Wing-Nuts
- San Simeon SP, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-121.1235286&<ll...>,-121.1235286
- Checklist: https://ebird.org/checklist/S283818603
- Media: 7 Photos
- Comments: "Male observed actively feeding on a variety of insects in oaks along campground road behind campsite 88 in midst of 30+ warbler flock comprised primarily of Yellow-rumped Warblers with a few Orange-crowned and Townsend's Warblers mixed in. This bird was striking with bold black and white striping on back, black wing bars, white median crown stripe bordered by black lateral crown stripes, white supericilium, white eye-arcs, black lores and ariculars, black streaks on throat, black streaking from upper breast to flanks, white belly and black patterned spotting on undertail."

Orange-crowned Warbler (sordida) (Leiothlypis celata sordida) (1)
- Reported Nov 10, 2025 07:09 by Ann Stockert
- Arroyo Grande Creek--Fair Oaks Ave Bridge, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.5872571&<ll...>,-120.5872571
- Checklist: https://ebird.org/checklist/S283890260
- Comments: "*Expected, a few winter in south county. Apparently not the same individual that was here in Oct, so new bird. Dull OCWA with long spiky bill, greener upper/paler lower eye-arc, extensively olive-streaked undertail covs, sharp metallic chip. Pics"

Bay-breasted Warbler (Setophaga castanea) (1) CONFIRMED
- Reported Nov 09, 2025 12:50 by Petra Clayton
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283812170
- Media: 5 Photos
- Comments: "Continuing since 11/4/25 (Bob McKay). --- Actively foraging in the eucalyptus trees across from the gazebo, toward the end of the tree-lined path, that parallels the fence and connects the lakeside trail head with the northern trailhead.

Lime-green head, nape and back; back with black streaks; white throat and belly; white undertail with black outer edges; yellow wash on the breast; salmon-colored lower flanks; black wings with two bold white wingbars; yellow-green face; white eye arcs; dark line through the eye; pointed black-tipped bill with dark upper mandible and pinkish lower mandible; dark gray legs and feet."

Bay-breasted Warbler (Setophaga castanea) (1)
- Reported Nov 09, 2025 10:42 by Luke Jensen
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283792360
- Comments: "Saw in line of eucalyptus usually around 4th toyon bush. Very cooperative pics will be soon."

Bay-breasted Warbler (Setophaga castanea) (1) CONFIRMED
- Reported Nov 09, 2025 09:29 by Gabriel Rudy
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283780240
- Media: 6 Photos
- Comments: "Continuing. Photos."

Bay-breasted Warbler (Setophaga castanea) (1) CONFIRMED
- Reported Nov 09, 2025 08:58 by Morgan Bing
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283793291
- Media: 6 Photos
- Comments: "Continuing. Photos."

Bay-breasted Warbler (Setophaga castanea) (1) CONFIRMED
- Reported Nov 09, 2025 08:58 by Robbie & Bob Revel
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283793301
- Media: 6 Photos
- Comments: "Continuing. Photos."

Bay-breasted Warbler (Setophaga castanea) (1) CONFIRMED
- Reported Nov 09, 2025 08:58 by Cika Cook
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283795182
- Media: 6 Photos
- Comments: "Continuing. Photos."

Bay-breasted Warbler (Setophaga castanea) (1) CONFIRMED
- Reported Nov 09, 2025 08:58 by Ben Kolstad
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283795166
- Media: 6 Photos
- Comments: "Continuing. Photos."

Bay-breasted Warbler (Setophaga castanea) (1) CONFIRMED
- Reported Nov 09, 2025 08:58 by Katherine Mills
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283797539
- Media: 6 Photos
- Comments: "Continuing. Photos."

Bay-breasted Warbler (Setophaga castanea) (1) CONFIRMED
- Reported Nov 09, 2025 08:58 by Corey Walsh
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283805737
- Media: 6 Photos
- Comments: "Continuing. Photos."

Bay-breasted Warbler (Setophaga castanea) (1) CONFIRMED
- Reported Nov 09, 2025 08:58 by Will Knowlton
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283785543
- Media: 6 Photos
- Comments: "Continuing. Photos."

Bay-breasted Warbler (Setophaga castanea) (1) CONFIRMED
- Reported Nov 09, 2025 08:34 by Steve Manns
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283758582
- Comments: "Bonus.....old friend from PA migration. Thanx to 4 fellow birders"

Bay-breasted Warbler (Setophaga castanea) (1) CONFIRMED
- Reported Nov 09, 2025 08:02 by Nick & Jane
- Laguna Lake, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6903817&<ll...>,-120.6903817
- Checklist: https://ebird.org/checklist/S283803900
- Media: 2 Photos
- Comments: "Continuing. This is my third sighting of this bird: Nov. 5, 8, 9. Today I wandered into a bird group led by W. Knowlton. He said, “Help us find the bird,” and so I luckily found it foraging in eucs along the barbed fence, which runs north from paved loop entrance. My Nov. 5 checklist has coordinates and bird description: https://ebird.org/checklist/S283059258 — Took one or two distant photos."

Yellow-rumped Warbler (Myrtle x Audubon's) (Setophaga coronata coronata x auduboni) (1)
- Reported Nov 10, 2025 08:56 by Ann Stockert
- Mentone Basin Park, San Luis Obispo, California
- Map: http://maps.google.com/?ie=UTF8&t=p&z=13&<q...>,-120.6132531&<ll...>,-120.6132531
- Checklist: https://ebird.org/checklist/S283907417
- Comments: "*Uncommon. New bird (had one here a week or two ago). Like AUYRWA but pale edges to throat extending around auriculars, yellow wash to throat, clearly intermediate chip. In SW corner of park. Unfortunately escaped pics."

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