ABC's Bird Library

Search our 400+ comprehensive bird species profiles to learn about the natural history and conservation issues facing birds throughout the Americas.

Blue-throated macaws flying

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Palila by Jacob Drucker
  • Population: Estimated at fewer than 680
  • Trend:  Decreasing
Swainson's Hawk by Brendan Beers, Macaulay Library at the Cornell Lab of Ornithology
  • Population: 900,000
  • Trend:  Stable
'Akeke'e by Stephen Lorenz, Macaulay Library at the Cornell Lab of Ornithology
  • Population: 638 individuals (2021 estimate)
  • Trend:  Decreasing
BOTW featured image_Blackpoll Warbler by Larry Master, masterimages.org
  • Population: 60 million
  • Trend:  Decreasing
Least Tern by Dan Casey
  • Population: 120,000
  • Trend:  Decreasing
Gilt-edged Tanager by Ciro Albano
  • Population: Unknown
  • Trend:  Presumed stable
Brown Pelican by Owen Deutsch Photography, owendeutsch.com
  • Population: Approximately 372,000
  • Trend:  Increasing
'Apapane By Daniel Murphy, Macaulay Library at the Cornell Lab of Ornithology
  • Population: Estimated 1.25 million
  • Trend:  Stable
Thick-billed Longspur by Frode Jacobsen, Shutterstock
  • Population: 840,000
  • Trend:  Decreasing
Grasshopper Sparrow by FotoRequest, Shutterstock
  • Population: 34 million
  • Trend:  Decreasing
Blue-eyed Ground-Dove by Ciro Albano
  • Population: Estimated at 16 individuals
  • Trend:  Decreasing
Northern Bobwhite by Danita Delimont, Shutterstock
  • Population: 5.8 million
  • Trend:  Decreasing
Eastern Meadowlark by Christopher Becerra, Shutterstock
  • Population: 37 million
  • Trend:  Decreasing
Red-faced Warbler by Greg Hormel, Natural Elements Productions
  • Population: 350,000
  • Trend:  Decreasing
Western Tanager by Greg Homel, Natural Elements Productions
  • Population: 15 million
  • Trend:  Stable
Yellow Oriole by Jhonathan Miranda, Macaulay Library at the Cornell Lab of Ornithology
  • Population: Unknown
  • Trend:  Stable
Wood Thrush by Greg Homel, Natural Elements Productions
  • Population: 12 million
  • Trend:  Decreasing
Common Yellowthroat by Mircea Costina, Shutterstock
  • Population: 77 million
  • Trend:  Decreasing
Kentucky Warbler by Bryan Calk, Macaulay Library at the Cornell Lab of Ornithology
  • Population: 2.6 million
  • Trend:  Decreasing
Hermit Warbler by punkbirdr, Shutterstock
  • Population: 2.5 million
  • Trend:  Stable

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We've lost a more than a quarter of our birdlife since 1970.

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Eastern Bluebird, Jesse Nguyen/Shutterstock

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