Cornell University Library Digital Collections
Subject
- Blue jay1
- Blue-and-yellow Macaw1
- Blue-cheeked Bee-eater1
- Blue-gray Gnatcatcher1
- Blue-headed Fantail1
- Bolivian turquoise tanager1
- Bonasa umbellus2
- Boreal Owl2
- Botaurus stellaris1
- Brambling1
- Brown Pelican1
- Brown-headed Cowbird1
- Bubo1
- Bubo bubo1
- Buceros bicornis1
- Bucerotidae1
- Buff-faced Pygmy-Parrot1
- Buff-rumped Thornbill1
- Bushtit1
- Butorides virescens1