Heard a chirp or spotted a flutter? These free apps identify backyard birds by sight or sound — no binoculars or in-depth ...
Ready to learn about bird-watching for beginners? Grab binoculars and a field guide, connect with other birders, then go see ...
Copyright of bird-song recordings held by the Cornell Laboratory of Ornithology and the Borror Laboratory of Bioacoustics. Booklet entitled, "Birding by ear : a guide ...