Hawks in flight
Subtitle: the flight identification of North American migrant raptors
By: Pete Dunne, David Sibley, Clay Sutton ; illustrated by David Sibley.
Contributors: Sibley, David, 1961-; Sutton, Clay, 1949-
Publisher: Houghton Mifflin
Published: 1988
Place of publication: Boston
Language: eng
Number of pages: 254
Subjects: Birds of prey -- North America -- Identification.; Birds -- Identification.; Birds -- North America -- Identification.
Notes: Bibliography: p. 248-250.
Some ill. on lining papers.
Includes index.