Bird watching Information about the nesting, feeding, and mating habits of North American backyard birds

eNature: Your Guide to America's Wildlife -- Comprehensive, Accurate, and Local, now including the Sibley Guide to Birds

With more than 25 years of bird feeding experience and expertise, Wild Birds Unlimited specializes in bringing people and nature together with quality bird food, bird feeders, bird baths and other nature products.

Birds in backyards and the wild. Identiy and understand birds, pictures, songs and calls, birding, bird watching guides and equipment

Cornell Lab of Ornithology, We use science to understand the world, to find new ways to make conservation work, and to involve people who share our passion. We offer help for birders through All About Birds website on all bird info, questions, etc.