The American Ornithological Society (AOS) is an ornithological organization based in the United States. The society was formed in October 2016 by the merger of the American Ornithologists' Union (AOU) and the Cooper Ornithological Society. Its members are primarily professional ornithologists although membership is open to anyone with an interest in birds. The AOS is a member of the Ornithological Council and Ornithological Societies of North America (OSNA). The society publishes the two scholarly journals The Auk and The Condor as well as the AOS Checklist of North American Birds.
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Federal and state mandates to conserve 30% of the nation's lands and waters by 2030 are intended to protect biodiversity. But do protected areas actually work?
Plants & Animals
Aug 5, 2021
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The barrier islands of North Carolina's Cape Hatteras National Seashore are among the most popular recreational destinations on the Atlantic coast. Park managers strive to integrate the needs of wildlife with recreational ...
Plants & Animals
Aug 6, 2020
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The Biological Dynamics of Forest Fragments Project (BDFFP), located near Manaus, Brazil, began in 1979 and is the world's longest-running experimental study of tropical forest fragments. A new paper in The Condor: Ornithological ...
Plants & Animals
Apr 8, 2020
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The Common Nightingale, known for its beautiful song, breeds in Europe and parts of Asia and migrates to sub-Saharan Africa every winter. A new study published in The Auk: Ornithological Advances suggests that natural selection ...
Ecology
Apr 1, 2020
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Populations of some common bird species, including the familiar Mourning Dove, have been on the decline for decades in North America. Agricultural lands can support bird populations, but agricultural intensification can also ...
Ecology
Mar 11, 2020
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A growing body of research shows that birds' spring migration has been getting earlier and earlier in recent decades. New research from The Auk: Ornithological Advances on Black-throated Blue Warblers, a common songbird that ...
Ecology
Feb 20, 2020
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In the Pacific Northwest, the range expansion of Barred Owls has contributed to a conservation crisis for Northern Spotted Owls, which are being displaced from their old-growth forest habitat. How will this interaction between ...
Ecology
Jan 22, 2020
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If you're a predator that eats baby birds—say, an American Crow—eavesdropping on the begging calls of nestlings can be an easy way to find your next meal. But do baby birds change their begging behavior when predators ...
Plants & Animals
Dec 17, 2019
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Reproduction and migration are the two most demanding tasks in a bird's life, and the vast majority of species separate them into different times of the year. Only two bird species have been shown to undertake what scientists ...
Ecology
Oct 15, 2019
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We usually think of a species as being reproductively isolated—that is, not mating with other species in the wild. Occasionally, however, closely related species do interbreed. New research just published in The Auk: Ornithological ...
Ecology
Sep 17, 2019
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