Social feeding behavior of birds.

v.36:no.1(1954)

Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History. by Charles E. Hellmayr.

v.13:pt.7(1934)

Birds of the Crane Pacific expedition, by Ernst Mayr and Sidney Camras.

v.20:no.34(1938)

Birds of the Marshall Field Peruvian Expedition, 1922-1923, by John T. Zimmer ...

v.17:no.7(1930)

Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History. initiated by Charles B. Cory, continued by Charles E. Hellmayr.

v.13:pt.4(1925)

Two new birds from British Guiana, by Emmet R. Blake.

v.24:no.20(1941)

Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History. by Charles E. Hellmayr.

v.13:pt.8(1935)

Birds from the Yucatan peninsula, by Melvin A. Traylor.

v.24:no.19(1941)

A collection of birds from the Ivory Coast [by] Melvin A. Traylor and Daniel Parelius.

v.51:no.7(1967)

Report on a collection of birds from Guerrero, Mexico [by] Emmet R. Blake.

v.31:no.39(1950)

Food habits of some Arctic birds and mammals / by Clarence Cottam and Harold C. Hanson.

v.20:no.31(1932)

The birds of Cerro de la Neblina, Territorio Federal Amazonas, Venezuela / David E. Willard ... [et al.].

n.s. no.65(1991)

Three new birds of the genus stachyris, by H. G. Deignan.

v.24:no.10(1939)

The birds of El Salvador, by Donald R. Dickey and A. J. Van Rossem.

v.23 (1938)

Birds of the Kelley-Roosevelts expedition to French Indo-China, by Outram Bangs and Josselyn Van Tyne.

v.18:no.3(1931)