Report on the Birds Collected By the British Ornithologists' Union Expedition and Wollaston Expediti
Illustrations by H. Gronvold
The Displays of the Manakins Pippra pira and Tyranneutes virescens
The Birds of the Coto Donana
Mountfort, Guy; Ferguson-Lees, I.J.
The Nest as a Dormitory
Skutch, Alexander F.
The Number of Species and Genera of Recent Birds: A Contribution to Comparative Systematics
Bock, Walter J.& John Farrand, Jr.
The World of Birds [New and Revised Edition]
Fisher, James and Roger Tory Peterson
On a Collection of Birds from Marocco (Morocco)
Phillips, E. Lort
Studies in Bird Migration Being the Collected Papers of H. Chr. C. Mortensen
Mortensen, H. Chr.C.
A Field Guide to the Nests, Eggs and Nestlings of North American Birds
Narrative of a Visit to Somaliland in 1897
On the Avifauna of the Lower Pilcomayo (Argentina)
Kerr, J. Graham
Field Notes on some of the Bush-birds of New Zealand