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Checklist S145934035

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Main Details

Location Marina Landfill (restricted access)
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Additional Details

People

Owner Don Roberson

Other Participating eBirders

Effort

Protocol:  Traveling
  • Observers:  3
  • Distance:  2.72 mi

Checklist Comments

We had pre-arranged permission for the Landfill management to check on the hawk nest in a closed part of the property. We checked it at 10 a.m., when there was ground fog still present but lifting. My the time we arrived at the nest site it was mostly sunny, cool, and calm. Within the hour a northwesterly wind was blowing.

Submitted from eBird for iOS, version 2.18.25

Totals

24
Species Observed
272 individuals
1
Species with Photos

Observations

  1. California Quail

    Number observed:  10

    Details

    including about 7-8 PY

    Breeding & Behavior Code:

    FL Recently Fledged Young (Confirmed)

  2. Eurasian Collared-Dove

    Number observed:  2

  3. Mourning Dove

    Number observed:  2

  4. Anna's Hummingbird

    Number observed:  1

  5. Heermann's Gull

    Number observed:  6

  6. Western Gull

    Number observed:  50

  7. California Gull

    Number observed:  50

  8. Double-crested Cormorant

    Number observed:  4

  9. Turkey Vulture

    Number observed:  4

  10. Swainson's Hawk

    Number observed:  2

    Details

    Continuing rarity initially found by Brian Sullivan on 05/13/23. Beautiful dark morph adult and nestling standing in nest. During the 40 minutes or so we observed the hawks, the adult Swainson’s hawk flew closer to the nest from its original perch, it called, it preened, and it attempted an unsuccessful hunt. Distant photos.
    DR writes: "With permission from the Landfill, we visited the nest that BL Sullivan, P Fenwick, and we had discovered on 24 June. Today we viewed the nest with scopes from a distance. We saw one nestling that looked to be 2/3 to 3/4 adult-sized, which mostly hunkered down but stood up once while being viewed with a scope. Karen's photo shows nestling fuzz on back, but the scaps, wings, upper breast, and crown were feathered. The throat was white and we noted additional fuzzy pin-feathers on neck, a bit of face, and maybe belly. It had a nice strong hooked bill, but the lack of a fully-feathered neck made the head look a bit like an Old World vulture. The adult present (female?) was perched nearby the entire time, but changed perches and once flew around the nest tree to perch closer to it. (We did not see the other adult)."
    Later: "From text and a photo from Cornell's 'Bird of World,' and using the phenology set out therein, I am guessing the nestling is about 20 days old (15-25 range day range?). If so, it hatched about 9 July from an egg laid about 5 June (using average timing). If this hypothesis is correct, it could fledge in 22-25 days."

    Breeding & Behavior Code:

    NY Nest with Young (Confirmed)

    Media

  11. Red-tailed Hawk (calurus/alascensis)

    Number observed:  3

    Details

    One adult mobbed by American Crows.

  12. American Kestrel

    Number observed:  1

  13. Black Phoebe

    Number observed:  2

  14. California Scrub-Jay

    Number observed:  1

  15. American Crow

    Number observed:  40

  16. Common Raven

    Number observed:  4

  17. Tree Swallow

    Number observed:  5

  18. Barn Swallow (American)

    Number observed:  50

  19. Cliff Swallow (pyrrhonota Group)

    Number observed:  10

  20. Bewick's Wren (spilurus Group)

    Number observed:  1

  21. Swainson's Thrush (Russet-backed)

    Number observed:  1

  22. House Finch

    Number observed:  20

    Breeding & Behavior Code:

    FL Recently Fledged Young (Confirmed)

  23. American Goldfinch

    Number observed:  2

  24. Spotted Towhee (oregonus Group)

    Number observed:  1
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