North America's smallest falcon, the American Kestrel (Falco sparverius), has declined across the continent since the 1970s, yet the causes continue to stump raptor biologists. A new study published ...

The number of American kestrels has dropped sharply. That goes against the trend for birds of prey, broadly seen as a conservation bright spot. A tagged kestrel in Harmony Township, N.J., held by John ...

The piping plovers received much attention in Chicago again, and it’s well deserved. The return of mating plovers is a continuing avian success story in an era in which shrinking habitats and ...

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A kestrel chick after receiving its identifying USGS leg-band attached by DNREC raptor, grassland and forest bird biologist Jordan Brown. DNREC photo. Avian Biologists Gather Data on Species’ Decline ...