Date: October 17, 2018
Source: American Ornithological Society Publications
Office
Aerial
insectivores -- birds that hunt for insect prey on the wing -- are declining
across North America. Conserving vulnerable species such as these requires a
good understanding of the factors impacting them at every stage of life.
Juveniles and adults, for example, may face different threats and die at
different rates. Two new studies from The Condor: Ornithological
Applications take a deep dive into the demographic factors behind
declining populations of Tree Swallows and show that although specifics may
vary between locations, action is needed to address environmental changes
affecting these birds across their geographic range.
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