Colorado

Bird Pictures by Bill Schmoker - Gallery of high-quality digital photos, mostly from Colorado; tips on digiscoping techniques.

Birding in Colorado - Basic guide to Denver metro area birding hot spots.

Birds of Prey Foundation - Raptor rehabilitation organization based in Boulder County.

Colorado Birding Society - Recent bird sightings, photo gallery, trip reports, directions to birding spots throughout the state, checklists, report forms, and field trips.

Colorado Bird-watching Sites - Guide to 13 sites from National Geographic.

Colorado Field Ornithologists - On-line store, field trips, Colorado Bird Records Committee, checklists, rare bird alert, paper abstracts, journal articles, site guides with maps for 7 spots, report forms, photos and video clips, and bird counts.

Denver Field Ornithologists - Meetings and field trips.

Eckert Crane Days - Annual event held in mid-March in Eckert, to observe the Sandhill Crane migration.

National Wildlife Refuge Bird Checklists - Seasonal checklists for 16 sites in Colorado.

Natural Diversity Information Source - Wildlife Species - Lists of birds, mammals, amphibians, and reptiles for each county.

Rocky Mountain Bird Observatory - Conservation and education projects, volunteer opportunities, Partners In Flight database and bird conservation plan, and news. Formerly Colorado Bird Observatory.