"Partial migration"—where some individuals within a population migrate and some don't—is common among birds and is speculated to be a step on the evolutionary path to complete, long-distance migration, but scientists ...
Plants & Animals
Aug 8, 2018
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4
As might be expected for a recently discovered bird species in the continental United States—only the second in nearly 80 years—the Cassia Crossbill (Loxia sinesciuris) is range-restricted. It occurs in just two small ...
Ecology
Aug 1, 2018
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4
The rufa subspecies of Red Knot travels from its breeding grounds in the Canadian Arctic to its winter habitat in South America and back each year, an incredible 15,000 kilometers each way. Its numbers have fallen precipitously ...
Ecology
Aug 1, 2018
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3
Land use changes are a major driver of species declines, but in addition to the habitat to which they're best adapted, many bird species use "alternative" habitats such as urban and agricultural land. A new study from The ...
Ecology
Jul 25, 2018
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10
Understanding what environmental cues birds use to time their annual migrations and decide where to settle is crucial for predicting how they'll be affected by a shifting climate. A new study from The Auk: Ornithological ...
Ecology
Jul 11, 2018
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5
A study published in The Condor: Ornithological Applications presents a case study on how bird surveys can better inform conservation and vegetation restoration efforts. Previous conservation methods have emphasized plants ...
Ecology
Jul 11, 2018
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4
A study from The Auk: Ornithological Advances presents citizen science data which supports that American Crows and Northwestern Crows almost exclusively (97% of the time) instigate any aggressive interactions with Common ...
Ecology
Jul 4, 2018
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169
A new study in The Condor: Ornithological Applications presents negative associations between anthropogenic disturbance (human recreational use of beaches, coastal modifications) and Piping Plovers on their non-breeding grounds. ...
Ecology
Jul 4, 2018
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4
The Auk: Ornithological Advances presents a study on a Northern Spotted Owl pedigree, consisting of almost 14,200 individuals over 30 years, which determined inbreeding varies across the species' range. Selection against ...
Ecology
Jul 4, 2018
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2
A new study in The Condor: Ornithological Applications presents some of the best guidance to date on the priorities and actions that can be taken to help Hawaii's endemic birds. Hawaii's ecosystems, including its native bird ...
Ecology
Jun 27, 2018
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