A field guide to sparrows and finches.

A field guide to 60 sparrows and finches including 200 color photographs, detailed descriptions of song, habitat and plumage changes according to season and gen

Birds of prey can be particularly difficult to track for a variety of reasons: - Nocturnal behavior - Remote habitats - Migratory patterns - Swift flight speeds

This comprehensive e-guide to North American birds uses a fully integrated photographic approach for quick and easy identification in the field. This is the onl