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The Institute for Bird Populations
© 2002

AGEING NORTH AMERICAN LANDBIRDS
BY MOLT LIMITS AND PLUMAGE CRITERIA

A Photographic Companion to the Identification Guide
to North American Birds, Part 1

By Dan Froehlich

NOW AVAILABLE!
CLICK IMAGE TO DOWNLOAD
(PDF 4.95MB)

Danual

A Product of: The Institute for Bird Populations
and The U.S.D.I. Bureau of Reclamation


Includes:

49 pages including extensive photo-captions and
discussion of ageing by molt limits

32 color photographs and 2 line drawings
illustrating molt limits and ageing

Pointers on each photograph indicating juvenal, formative, basic and alternate feathers among wing coverts, primaries, and secondaries

Example of one of the annotated color photographs:

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