Sunday, December 13, 2020

A Nice Guide to Aging Immature Bald Eagles


2 comments:

Girl with a Curl said...

Do have a source for growth in weight/body mass/wing span for maturing eagles?

I have looked but have found only comparisons between females and males.

Also will an immature eagle (using your head drawings) 1 1/2 years share territory with a red-tailed hawk?

Elizabeth Guss

PBurns said...

First year eagles are the same sized as adults, only with slightly longer wing feathers to compensate for less body muscle as they learn to fly. Bald Eagles and Red-tail Hawks are around each other all the time, and rarely compete for food.