revision of the geographical races of the blue grosbeak (Guiraca caerulea)
By: by Jonathan Dwight and Ludlow Griscom.
Contributors: Griscom, Ludlow, 1890-1959.
Series: American Museum novitates -- no. 257
Publisher: American Museum of Natural History
Published: 1927
Place of publication: New York City
Language: eng
Subjects: Grosbeaks; Birds -- North America; Birds -- Central America; Birds -- Variation
Other titles: Revision of  races of the blue grosbeak
Notes: Caption title.

Running title: Revision of races of the blue grosbeak.