North America's smallest falcon, the American Kestrel (Falco sparverius), has declined across the continent since the 1970s, ...
A female American Kestrel nestling with its recently attached VHF back-pack style transmitter in the Virginia Piedmont study area. Feathers cover all but the antenna.
Three American Kestrel fledglings wearing VHF transmitters and alpha-numeric color bands at the Hawk Mountain site.
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