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  1. Red-winged Blackbird Agelaius phoeniceus
    ML155379211 eBird记录 S55476303 报告 发声 鸣叫
    Red-winged Blackbird - ML155379211
    条评分 4
    2 条评分
    Boulder, Colorado, United States
  2. Red-winged Blackbird Agelaius phoeniceus
    ML154934241 eBird记录 S55476303 报告 发声 鸣唱
    Red-winged Blackbird - ML154934241
    条评分 2
    1 条评分
    Boulder, Colorado, United States
  3. Red-winged Blackbird Agelaius phoeniceus
    ML154870531 eBird记录 S55476303 报告 发声 鸣叫
    Red-winged Blackbird - ML154870531
    条评分 4
    2 条评分
    Boulder, Colorado, United States
  4. Red-winged Blackbird Agelaius phoeniceus
    ML154868021 eBird记录 S55476303 报告 发声 鸣叫
    Red-winged Blackbird - ML154868021
    条评分 4
    2 条评分
    Boulder, Colorado, United States
  5. Red-winged Blackbird Agelaius phoeniceus
    ML154825511 eBird记录 S55476303 报告 发声 鸣叫
    Red-winged Blackbird - ML154825511
    条评分 4
    2 条评分
    Boulder, Colorado, United States
  6. Red-winged Blackbird Agelaius phoeniceus
    ML154822701 eBird记录 S55476303 报告 发声 鸣叫
    Red-winged Blackbird - ML154822701
    条评分 4
    2 条评分
    Boulder, Colorado, United States
  7. Song Sparrow Melospiza melodia
    ML154793321 eBird记录 S55476303 报告 发声 鸣唱
    Song Sparrow - ML154793321
    条评分 5
    2 条评分
    Boulder, Colorado, United States
  8. Song Sparrow Melospiza melodia
    ML154782431 eBird记录 S55476303 报告 发声 鸣唱
    Song Sparrow - ML154782431
    条评分 5
    2 条评分
    Boulder, Colorado, United States
  9. Song Sparrow Melospiza melodia
    ML154773101 eBird记录 S55476303 报告 发声 鸣唱
    Song Sparrow - ML154773101
    条评分 4
    2 条评分
    Boulder, Colorado, United States
  10. Canada Goose (moffitti/maxima) Branta canadensis moffitti/maxima
    ML154742581 eBird记录 S55476303 报告 发声 鸣叫
    Canada Goose (moffitti/maxima) - ML154742581
    条评分 4
    3 条评分
    Boulder, Colorado, United States
  11. Canada Goose (moffitti/maxima) Branta canadensis moffitti/maxima
    ML154574571 eBird记录 S55476303 报告 发声 鸣叫
    Canada Goose (moffitti/maxima) - ML154574571
    条评分 3
    3 条评分
    Boulder, Colorado, United States
  12. Red-winged Blackbird Agelaius phoeniceus
    ML154569371 eBird记录 S55476303 报告
    Red-winged Blackbird - ML154569371
    条评分 4
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 One of the many, many Red-winged Blackbirds at Walden Ponds. This one was just o…
    年龄和性别 成年雄鸟 - X
  13. Song Sparrow Melospiza melodia
    ML154567881 eBird记录 S55476303 报告
    Song Sparrow - ML154567881
    条评分 4
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 This is the Song Sparrow that sang the three song types referenced below.
    年龄和性别 成鸟，性别未知 - X
  14. House Wren Troglodytes aedon
    ML154553451 eBird记录 S55476303 报告 发声 鸣叫
    House Wren - ML154553451
    条评分 3
    1 条评分
    Boulder, Colorado, United States
  15. House Wren Troglodytes aedon
    ML154547421 eBird记录 S55476303 报告 发声 鸣唱
    House Wren - ML154547421
    条评分 4
    2 条评分
    Boulder, Colorado, United States
  16. Swainson's Hawk Buteo swainsoni
    ML154513941 eBird记录 S55476303 报告
    Swainson's Hawk - ML154513941
    条评分 2
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 Intermediate-morph Swainson's Hawk over the Cottonwood Marsh parking area.
    年龄和性别 成鸟，性别未知 - X
  17. American Robin Turdus migratorius
    ML154436911 eBird记录 S55476303 报告
    American Robin - ML154436911
    条评分 3
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 A close-up look at the wing of the bird in ML154435001.
    年龄和性别 未成年性别未知 - X
  18. American Robin Turdus migratorius
    ML154435001 eBird记录 S55476303 报告
    American Robin - ML154435001
    条评分 4
    3 条评分
    Boulder, Colorado, United States
    媒体文件注释 I was unclear about aging this bird with the remiges and upperwing coverts, so I…
    年龄和性别 未成年性别未知 - X
  19. Canada Goose (moffitti/maxima) Branta canadensis moffitti/maxima
    ML154434441 eBird记录 S55476303 报告
    Canada Goose (moffitti/maxima) - ML154434441
    条评分 3
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 Feather barb detail, same bird as in ML154369761.
    年龄和性别 成年雄鸟 - X
  20. Canada Goose (moffitti/maxima) Branta canadensis moffitti/maxima
    ML154369761 eBird记录 S55476303 报告
    Canada Goose (moffitti/maxima) - ML154369761
    条评分 3
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 Feather detail on the larger bird, the presumed male. As with the presumed femal…
    年龄和性别 成年雄鸟 - X
  21. Canada Goose (moffitti/maxima) Branta canadensis moffitti/maxima
    ML154367391 eBird记录 S55476303 报告
    Canada Goose (moffitti/maxima) - ML154367391
    条评分 4
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 Rectrix and remex detail of the near bird, the presumed female (based on body si…
    年龄和性别 成年雌鸟 - X
  22. Canada Goose (moffitti/maxima) Branta canadensis moffitti/maxima
    ML154360321 eBird记录 S55476303 报告
    Canada Goose (moffitti/maxima) - ML154360321
    条评分 4
    3 条评分
    Boulder, Colorado, United States
    媒体文件注释 This is one of the pairs we saw, this pair at Bass Pond, north side. Note the bi…
    年龄和性别 成鸟，性别未知 - X
  23. Common Raven Corvus corax
    ML154307201 eBird记录 S55476303 报告
    Common Raven - ML154307201
    条评分 2
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 This Common Raven was at the dirt piles for the longest time. I wonder if it was…
    年龄和性别 成鸟，性别未知 - X
  24. American Kestrel Falco sparverius
    ML154295171 eBird记录 S55476303 报告
    American Kestrel - ML154295171
    条评分 2
    1 条评分
    Boulder, Colorado, United States
  25. Say's Phoebe Sayornis saya
    ML154282721 eBird记录 S55476303 报告
    Say's Phoebe - ML154282721
    条评分 3
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 One of two Say's Phoebes working the mullein stalks out in front of the sewage t…
    年龄和性别 成鸟，性别未知 - X
  26. House Wren Troglodytes aedon
    ML154279641 eBird记录 S55476303 报告
    House Wren - ML154279641
    条评分 3
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 Females do sing! So sex unknown.
    年龄和性别 成鸟，性别未知 - X
  27. Solitary Sandpiper Tringa solitaria
    ML154275501 eBird记录 S55476303 报告
    Solitary Sandpiper - ML154275501
    条评分 4
    2 条评分
    Boulder, Colorado, United States
  28. American Goldfinch Spinus tristis
    ML154255161 eBird记录 S55476303 报告 发声 鸣唱
    American Goldfinch - ML154255161
    条评分 4
    3 条评分
    Boulder, Colorado, United States
  29. Mourning Dove Zenaida macroura
    ML154223771 eBird记录 S55476303 报告
    Mourning Dove - ML154223771
    条评分 3
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 Same individual as in ML154208001; tail detail here.
    年龄和性别 成鸟，性别未知 - X
  30. Mourning Dove Zenaida macroura
    ML154216431 eBird记录 S55476303 报告
    Mourning Dove - ML154216431
    条评分 4
    2 条评分
    Boulder, Colorado, United States
    媒体文件注释 This is one of the birds (the front bird) in ML154208001.
    年龄和性别 成鸟，性别未知 - X