A newfound "chicken-size" dinosaur, recently unearthed in Wyoming, changes what paleontologists thought they knew about how ...

These birds of prey are crucial indicators of how well the ecosystem is functioning in Utah.

Surveying nesting raptors provides important information on population productivity. Since raptors occupy spots near the top of the food web, they are also often good indicators of ecosystem health.

A bald eagle that was spotted standing on the street last week in Hinsdale was suspected of having bird flu and euthanized.

The raptor is the fastest bird, and the fastest member of the animal kingdom, with a diving speed of up to 390 km/h (242 mph). For comparison, an adult cheetah can reach up to 120km/h or 75mph ...

He was sent along with another animal to the University of Minnesota's Raptor Center in St. Paul. The snowy owl she found hours later was in a much scarier situation, she said. "It was obviously a ...