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Checklist S12819955

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Main Details

Location Yolo County Central Landfill pond--from levee road by CR28H
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Additional Details

People

Owner Chris Conard

Effort

Protocol:  Traveling
  • Observers:  19
  • Distance:  0.5 mi

Checklist Comments

Central Valley Bird Club gull ID field trip led by Steve Hampton and Bruce Webb; mostly overcast most of the trip, calm and cool. We walked to the nearby WWTP ponds from the levee road adjacent to the dump ponds.

Totals

32
Species Observed
+3 other taxa

Observations

  1. Northern Shoveler

    Number observed:  150

  2. Gadwall

    Number observed:  40

  3. American Wigeon

    Number observed:  40

  4. Mallard

    Number observed:  8

  5. Canvasback

    Number observed:  2

  6. Redhead

    Number observed:  3

  7. Lesser Scaup

    Number observed:  5

  8. Bufflehead

    Number observed:  30

  9. Common Goldeneye

    Number observed:  30

  10. Ruddy Duck

    Number observed:  200

  11. American Coot (Red-shielded)

    Number observed:  25

  12. Black-necked Stilt

    Number observed:  12

  13. Ring-billed Gull

    Number observed:  3

  14. Western Gull

    Number observed:  2

    Details

    An adult and a first cycle bird.

  15. American Herring Gull

    Number observed:  500

  16. California Gull

    Number observed:  4000

  17. Glaucous-winged Gull

    Number observed:  40

  18. American Herring x Glaucous-winged Gull (hybrid)

    Number observed:  5

    Details

    Probably more of these. Also may have been a Western x Glaucous-winged.

  19. Glaucous x Glaucous-winged Gull (hybrid)

    Number observed:  1

    Details

    Adult that initially looked like a Glaucous, but had gray scalloping on primaries, dark eyes, and a bill more like a Glaucous-winged than a Glaucous.

  20. Iceland Gull (Thayer's)

    Number observed:  40

    Details

    One first cycle approaching Kumlien's. Numbers rough, as we were mostly focused on going over ID characteristics.

  21. gull sp.

    Number observed:  3000

    Details

    1 first cycle possible Slay-backed Gull. Photos being reviewed. 1 adult dark-eyed possible Herring/Vega Gull. Multiple hybrids: most apparent Herring X Glaucous-winged. Another bird, an adult, appeared to be a pure Glaucous with a pale eye, but has faint gray edging on primaries seen in field and shown in photos... Possibly another Glaucous X Glaucous-winged.
    Steve Hampton's photos:
    http://www.flickr.com/photos/7202050@N04/sets/72157632673167495/detail/

    Sylvia Wright has some more pics of the possible Slaty-backed at
    http://www.flickr.com/photos/34046677@N04/sets/72157632676243546/

  22. Great Egret

    Number observed:  1

  23. American White Pelican

    Number observed:  12

  24. White-tailed Kite

    Number observed:  1

  25. Northern Harrier

    Number observed:  2

  26. Red-tailed Hawk

    Number observed:  2

  27. American Kestrel

    Number observed:  2

  28. Black Phoebe

    Number observed:  2

  29. American Crow

    Number observed:  5

  30. Common Raven

    Number observed:  4

  31. Horned Lark

    Number observed:  2

    Details

    Vocal flyovers.

  32. American Pipit

    Number observed:  6

  33. Western Meadowlark

    Number observed:  12

  34. Red-winged Blackbird

    Number observed:  X

  35. Brewer's Blackbird

    Number observed:  X