Some birds are so massive they defy belief, dominating the skies with wingspans that stretch beyond imagination. One soars ...

Staff at the World Bird Sanctuary in St. Louis are taking extra precautions to protect raptor species from H5 avian influenza ...

With threats of avian flu and lead poisoning, biologists are working overtime to care for a species that nearly went extinct.

With each scan, he meticulously looks for metal fragments that could be slowly poisoning the bird from the inside. The condor has likely ingested lead bullet fragments embedded in the remains of a ...

Biologists treat sick and injured condors in a remote "hospital" in northern Arizona. The birds also receive vaccines to fight the avian flu. The condors ingest lead ammunition when they eat ...