Sites such as eNature.com and Almanac.com can help to identify wild bird sounds. ENature.com features the songs and calls of more than 550 birds of North America. Bird categories include long-legged waders, owls, hawks, gull-like birds and tree-clinging birds.
Each category features a variety of birds with sound clips that can be listened to and saved to a list.
At Almanac.com, site visitors can access bird sound articles and listen to specific bird calls such as the wild turkey, American kestrel, Eastern bluebird, American robin and the American goldfinch. The site features some of the most common backyard birds and their calls.