Birds’ feet vary a lot from species to species.  Hawks have talons, ducks have webbed feet, and marsh walkers have very long toes (like this jacana).

Even their rear toes differ based on their life styles.

On Throw Back Thursday, learn about the back toes at:  Anatomy: Musing on Rear Toes.

(photo from Wikimedia Commons; click on the image to see the original)