- Antpittas
- Australia's Gallery of Excellence
- Avibase
- Bird Identification Help Group
- Birdwatcher Italiani
- Bulbuls of the World
- Family Paridae, Chickadees and Tits of the World
- Field Guide: Birds of the World
- Flickr Big Cats
- Fotografi del mondo (high-quality photographs)
- Hummingbirds of the World
- Ivory-billed Woodpeckers & Others in the Campephilus Genus
- Juncos, Juncos, and more Juncos!
- The Friends Of Worldbirds
- Uccelli e Birdwatching in Italia