The champion of loudness! Males can hit 125 decibels—louder than a rock concert. This Amazonian bird reaches 116 decibels, ...

The Andean condor is considered threatened but is in far better shape than its California cousin. Reintroduction programs are working to grow populations of these South American birds.

Great horned owls are adaptable birds and live from the Arctic to South America. They are at home in suburbia as well as in woods and farmlands. Northern populations migrate in winter, but most ...

Even among migratory birds, the red knots' migration is harrowing. Running from South America to the furthest tip of Greenland, it's a journey of more than 9,000 miles. "Those birds gather in ...

The first purple martins of the year have been spotted in South Dakota, marking the start of spring migration. These birds travel up to 7,000 miles from Brazil to their breeding grounds in North ...