A field guide to western birds :
Peterson, Roger Tory, 1908-.
A field guide to western birds : a completely new guide to field marks of all species found in North America west of the 100th meridian and north of Mexico / text and illustrations by Roger Tory Peterson - 3a. - Boston : Houghton Mifflin, 1990. - 432 p. : col. il. ; 20 cm. - The Peterson field guide series ; 2. .
Incluye referencias bibliográficas (p. 416) e índice.
039551424X (pbk.) 0395517494 0395911745
89031517
Birds--West (U.S.)--Identification.
Birds--Canada, Western--Identification.
Aves--Identification.--Oeste--E.U.A.--Identificación.
Aves--Canada--Identificación.
QL683.W4 / P47 1990
598.2978
A field guide to western birds : a completely new guide to field marks of all species found in North America west of the 100th meridian and north of Mexico / text and illustrations by Roger Tory Peterson - 3a. - Boston : Houghton Mifflin, 1990. - 432 p. : col. il. ; 20 cm. - The Peterson field guide series ; 2. .
Incluye referencias bibliográficas (p. 416) e índice.
039551424X (pbk.) 0395517494 0395911745
89031517
Birds--West (U.S.)--Identification.
Birds--Canada, Western--Identification.
Aves--Identification.--Oeste--E.U.A.--Identificación.
Aves--Canada--Identificación.
QL683.W4 / P47 1990
598.2978
