Birds of Oklahoma - Bill Horn's excellent bird images from his home state of Oklahoma.

Birds West - John Mariani's website to birding in the San Francisco Bay Area.

Owling.com - The most informative source on North and Central American owls on the web; complete with photos and calls.

James Ownby - Superb photos with birding travel diaries to Central and South America, Australia, and the Fiji islands.

Greg Lasley Nature Photography - Bird and wildlife photography from around the world emphasizing Texas birds;  info about the subject and equipment used is also discussed.

Nature Photographers Online Magazine - An excellent interactive resource for the nature photographer complete with photo tips, reader's forum and photo galleries.

Photo Critique Forum - A dynamic image-based photo forum with photography from every category;  excellent nature and wildlife images posted by photographers.

eNature.com - Resource and community for nature enthusiasts. Complete guide to over 4,800 North American plants and animals, with detailed descriptions and photographs, habitat guides, eCards, and newsletters.

Photobirder - Provide the birding community with free access to photographs of the birds of the world.

Surfbirds - British and American birders furnish feature articles, bird checklists, photos of rarities, sketches from field trips and a bookstore.

Birdzilla - The number one birding website; a portal for birders offering news, merchandise, and feature articles.

Oklahoma Birds Listserv - An excellent forum providing discussion about Oklahoma birds and birding;  the bird photo gallery contains many pages of intriguing photos submitted by OKBird subscribers.