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The Cornell Lab of Ornithology builds the eBird global platform for communities and partners around the world to advance data-driven science, education, and conservation.

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Thief Valley Reservoir (Union Co.)

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Region Stats

222 Species 927 Checklists eBirders

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eBird in Thief Valley Reservoir (Union Co.)

eBirding This Month Apr 2024

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 Updated ~2 days ago
51 Species 6 Checklists eBirders

New Species

Native and Naturalized (5)

  1. American Wigeon Mareca americana
    # Count: 6
    Date:
    Observer: Dave Trochlell
    Location: Thief Valley Reservoir (Union Co.)
  2. Ring-necked Duck Aythya collaris
    # Count: 4
    Date:
    Observer: Dave Trochlell
    Location: Thief Valley Reservoir (Union Co.)
  3. California Quail Callipepla californica
    # Count: 6
    Date:
    Observer: Dave Trochlell
    Location: Thief Valley Reservoir (Union Co.)
  4. Gray Partridge Perdix perdix
    # Count: 6
    Date:
    Observer: Dave Trochlell
    Location: Thief Valley Reservoir (Union Co.)
  5. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Dave Trochlell
    Location: Thief Valley Reservoir (Union Co.)
All New Species

Recent Checklists

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All Recent Checklists

eBirders

This Month, Apr 2024
Updated ~1 second ago

Checklist Leaders

  • 1.
    Dave Trochlell
    1
  • 1.
    Kent Coe
    1
  • 1.
    Kelly Koopman
    1
  • 1.
    Michael Daugherty
    1

Species Leaders

  • 1.
    Dave Trochlell
    31
  • 2.
    Michael Daugherty
    30
  • 3.
    Kent Coe
    26
  • 4.
    Kelly Koopman
    9
All eBirders