Feather Anatomy
What Are the Branches of a Feather Called? Understanding Barbs and Barbules

Learn about the branches of a feather called barbs and their smaller branches, barbules, which give feathers structure for flight and insulation.

Feathered Facts
Why Do Bird Feathers Stick Together? Understanding Feather Structure

Discover how bird feathers interlock using barbules and the importance of preening for flight efficiency.