Biosystematics of sibling species of flycatchers in the Empidonax hammondii - oberholseri - wrightii complex.
Series: University of California publications in zoology,; v. 66, no. 2; University of California publications in zoology ;; v. 66, no. 2.
Publisher: University of California Press
Published: 1963
Place of publication: Berkeley
Language: eng
Number of pages: 236
Subjects: Empidonax.
Notes: Bibliography: p. 216-220.