A Crash Course In Bird Feathers - The Observer

Naturalist Doug Pifer discusses bird feathers.

100 years ago: Armour plating, wood pigeon style

BRUCE MACTAVISH: What will become of the solitary Steller's sea

The Sibley Guide to Bird Life and Behavior: NATIONAL AUDUBON

Pelicans, murres and whales are feasting off-shore on huge anchovy

The physics of structural plumage colours in birds

Differences in feathers shed light on evolution of flight

Think About Feathers Bird Academy • The Cornell Lab

When Hawks Pursue Songbirds It Can Be Deadly For Them Both

How to recognize real eagle feathers - Quora