Feather: Anatomy and Function

Feathers are a unique adaptation of birds. Feathers are made up of keratin, an insoluble protein that is also found in mammalian hair and reptilian scales.

Bird Feathers - ID, Structure, Types, Colors

Feather, Flight, Structure, Function

Bird Feathers - ID, Structure, Types, Colors

Parts of a chicken feather [39].

Feathers – Mary Ann Steggles

types of feathers – Mary Ann Steggles

types of feathers – Mary Ann Steggles

A Guide To Bird Feathers - Avian Report

FEATHER-FOCUS: Structure – WorldofAves