Peter Pyle

Identification Guide to North American Birds part I

Peter Pyle

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Identification Guide to North American Birds. Part II: Anatidae to Alcidae

Peter Pyle

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Identification Guide to North American Passerines: A Compendium of Information on Identifying, Aging, and Sexing Passerines in the Hand

Peter Pyle

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Distributional Checklist of North American Birds/Vol. 1

Peter Pyle

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Handbook of Field Methods for Monitoring Landbirds

Peter Pyle

$13.99

Molt and Aging Criteria for Four North American Grassland Passerines

Peter Pyle

$14.75