With around 2.5 million of them flying around North America, scientists know a lot about red-tailed hawks.But Angel, a red-tailed hawk in Knoxville, Tennessee, is getting the attention of scientists — ...

Which hawk are you seeing? Here's how to tell if your bird is an adult or juvenile red-tailed hawk. Learn about their sounds, range and more.

I’ve been seeing more red-tailed hawks out and about these last days of autumn. While driving along a busy road, I’ve seen one soaring in the air spreading out its wide, rufous tail and broad wings.

This adult red-tailed hawk is easily identified by its prominent red tail feathers. Immature red-tailed hawks do not have red tails. Credit: PHOTO BY BILL DANIELSON— Editor’s note: This column was ...