North America's smallest falcon, the American Kestrel (Falco sparverius), has declined across the continent since the 1970s, ...

A male American Kestrel nestling with its recently attached VHF back-pack style transmitter n the Virginia Piedmont study ...

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.