I just posted a site on a post of Art's for bird identification.
To keep this and others visible I am pinning this message so it is always on top of the group.
Cornell's site that I use the most, after my books.... http://www.allaboutb...rg/guide/search
I found this page at Sibley's site.... http://www.sibleygui...ird-references/
Nat Geo has a site....http://animals.natio...ird-identifier/
and of course Audubon... http://birds.audubon.org/birdid.
Feel free to add any other bird ID sites.