A Field Guide to Birds of the USSR Including Eastern Europe and Central Asia

Flint, V.E.; Et al.

A Guide to the Frogs and Toads of Belize

Meyer, John R.; Carol Franeti Foster

The Birds of Colombia and Adjacent Areas of South and Central America

Meyer De Schauensee, R.

Illustrations by Earl L. Poole and George Miksch Sutton

An Illustrated Field Guide to the Birds of Colombia

Quinones, Fernando Ayerbe

Mexican Birds: First Impressions

Sutton, George Miksch.

The Ornithogeography of the Yucatan Peninsula

PAYNTER, Raymond A., Jr.

Aves de las lagunas costeras de Oaxaca, Mexico: Guia fotografica de aves acuaticas y rapaces

Germain, Paul and Mateo Ruiz Bruce

The Ornithogeography of the Yucatan Peninsula

PAYNTER, Raymond A., Jr.

Additions To Records Of Birds Known From The Republic of Panama

Wetmore, Alexander

The Birds of Isla Escudo De Veraguas, Panama

Wetmore, Alexander

The Birds of the Islands of Taboga, Taboguilla, and Urava, Panama.

Wetmore, Alexander

On the Systematic Position of Zeledonia Coronata

Pycraft, W.P.