National Audubon Organization – The National Audubon Society protects birds and the places they need, today and tomorrow, throughout the Americas using science, advocacy, education, and on-the-ground conservation.

The Cornell Lab of Ornithology – Dedicated to advancing the understanding and protection of the natural world, the Cornell Lab joins with people from all walks of life to make new scientific discoveries, share insights, and galvanize conservation action.

Birdweb – Seattle Audubon’s Guide to the Birds of Washington State

Audubon Washington – Audubon Washington inspires diverse audiences to conserve natural ecosystems and build healthy communities for people, birds, and other wildlife.