A Field Guide to Mexican Birds: Mexico, Guatemala, Belize, El Salvador

Peterson, Roger Tory and Edward L. Chalif

Life in an Air Castle: Nature Studies in the Tropics

Chapman, Frank M.

Traveler's List and Checklist for Birds of Mexico

Wauer, Ronald H.; James A. Tucker

A Conservation Assessment of the Terrestrial Ecoregions of Latin America and the Caribbean

Dinerstein, Reic; et al

A Field Guide to the Birds of Mexico [First Edition]

Edwards, Ernest P.

Insight Guides Costa Rica

Haber, Dona; Harvey Haber

The Distribution of Bird-life in Guatemala: A Contribution to a Study of the Origin of Central Ameri

Griscom, Ludlow

Costa Rican Natural History

Janzen, Daniel H., Editor

Hummingbirds of Costa Rica

Fogden, Patricia; Michael Fogden

My Tropical Air Castle: Nature Studies in Panama

Chapman, Frank M.

Costa Rican Natural History

Janzen, Daniel H., Editor

The Butterflies of Costa Rica and Their Natural History: Papilionidae, Pieridae, Nymphalidae

DeVries, Philip J.