The Canadian Peregrine Foundation

Peregrine Age Guide - Day 25

(Photo courtesy of the Kodak Birdcam, Rochester NY)

In their fourth week of life, the chicks undergo significant changes almost daily.  Around day 25, the brown tips to the secondaries become clearly visible, and the number of coloured feathers visible on the breast increases noticeably.  Behaviourally, they are rarely resting on their tarsi anymore at this age.

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Canadian Peregrine Foundation