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Published in 2018 at "Canadian Journal of Zoology"
DOI: 10.1139/cjz-2017-0229
Abstract: Over the last decades, aerial insectivorous birds have been declining in both North America and Europe. Those declines have been hypothetically attributed to a decrease in prey availability caused by agricultural intensification but empirical evidence…
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Keywords:
prey;
prey availability;
swallows tachycineta;
tree swallows ... See more keywords