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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Red-billed Tropicbird Photo by Meghan Cassody, CC By SA 4.0
  • Population: Approx. 70,000 (World); with about 24,000 in the Hawaiian Islands.
  • Trend:  Decreasing
Guadalupe Murrelet by Mel Seanc, Macaulay Library at the Cornell Lab of Ornithology
  • Population: 5,000 mature individuals
  • Trend:  Decreasing
Arctic Tern by Arto Hakola, Shutterstock
  • Population: 2 million (global); approx. 800,000 (North America)
  • Trend:  Decreasing
Black-crowned Night Heron by Tim Drake Photography, Shutterstock
  • Population: 3 million (global); 100,000 (North America)
  • Trend:  Decreasing
Eared Grebe by Scott Carpenter
  • Population: 3.9 to 4.2 million (global); majority in North America
  • Trend:  Stable
American White Pelicans by Barbara Smits, Shutterstock
  • Population: 450,000
  • Trend:  Increasing
Lazuli Bunting by Peter LaTourrette
  • Population: 6.7 million
  • Trend:  Stable
Yellow-throated Vireo by Andrew Weitzel, CC BY-SA
  • Population: 4.4 million
  • Trend:  Increasing
Black-throated Gray Warbler by Jonathan Irons, Macaulay Library at the Cornell Lab of Ornithology
  • Population: 3.2 million
  • Trend:  Decreasing
Northern Waterthrush by Larry Master, masterimages.org
  • Population: 17,000,000
  • Trend:  Increasing
Painted Redstart by Ad Konigs, Macaulay Library at the Cornell Lab of Ornithology
  • Population: 600,000
  • Trend:  Decreasing
Connecticut Warbler by Michael Henry, Macaulay Library at the Cornell Lab of Ornithology
  • Population: 1.8 million
  • Trend:  Decreasing
Orange-crowned Warbler by Luke Seitz.
  • Population: 82 million
  • Trend:  Decreasing
Orchard Oriole @Michael Stubblefield, Macaulay Library at the Cornell Lab of Ornithology
  • Population: 12 million
  • Trend:  Decreasing
Brown Thrasher by Tessa Nickels
  • Population: 6.1 million
  • Trend:  Decreasing
Field Sparrow by Mark Johnson, Shutterstock
  • Population: 9.2 million
  • Trend:  Decreasing
Fox Sparrow @Michael Stubblefield
  • Population: 33 million
  • Trend:  Stable
Green Kingfisher by Bryan Calk, Macaulay Library at the Cornell Lab of Ornithology
  • Population: 20 million
  • Trend:  Probably declining based on habitat loss
Green-breasted Mango by Ana Paula Oxom, Macaulay Library at the Cornell Lab of Ornithology
  • Population: 500,000 – 5 million
  • Trend:  Probably declining based on habitat loss
  • Population: 200,000
  • Trend:  Decreasing

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Eastern Bluebird, Jesse Nguyen/Shutterstock

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