Handbook of Birds of Eastern North America

The book that made American bird-watching possible in the field: keys, plumages, songs and habits for every species of the East, by the man who ran ornithology at the American Museum.

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Remarks (This bird may be known)

This bird may be known by its small size and ear-tufts. Its color phases are not dependent upon age, sex, or season, and both phases are sometimes represented in the same brood. Between the two there is a complete intergradation. OWLS.

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