Field Guide to the Birds of the Dominican Republic and Haiti /

Geese Fly High.

Birdwatching in Maine : a site guide /

Population demography of northern spotted owls /

Population demography of northern spotted owls /

Birds of Chile : a photo guide /

Twelve owls /

The owl and the nightingale : the poem and its critics /

Bird love : the family life of birds /

40 years of evolution : Darwin's finches on Daphne Major Island /

Bird Island in Antarctic waters /

The last of its kind : the search for the great auk and the discovery of extinction /

A Pocket Guide to Birds of Galápagos /

Messages from an owl /

The scientific bases for preservation of the Mariana Crow /

Birds of Puerto Rico and the Virgin Islands Fully Revised and Updated Third Edition.

Birds of Puerto Rico and the Virgin Islands : Fully Revised and Updated Third Edition.

Terns of North America : a photographic guide /

What is a bird? : an exploration of anatomy, physiology, behavior, and ecology /

What is a bird? : an exploration of anatomy, physiology, behavior, and ecology /

Birds and us : a 12,000-year history from cave art to conservation /

Kennesaw : natural history of a southern mountain /

The rise of birds : 225 million years of evolution.

Birds of Botswana /

Henry Dresser and Victorian Ornithology : birds, book and business /

Kea, Bird of Paradox : the Evolution and Behavior of a New Zealand Parrot.

The house of owls /

Wedge-tailed eagle /

Avian flight /

Hawks from every angle : how to identify raptors in flight /

Bird song : biological themes and variations /

Birds of Puerto Rico and the Virgin Islands Fully Revised and Updated Third Edition.

Nature's diplomats : science, internationalism, and preservation, 1920-1960 /

Bird versus bulldozer : a quarter-century conservation battle in a biodiversity hotspot /

In search of meadowlarks : birds, farms, and food in harmony with the land /

Nature through Tropical Windows /

What is a bird? : an exploration of anatomy, physiology, behavior, and ecology /

How birds evolve : what science reveals about their origin, lives, and diversity /

The action plan for Australian birds 2010 /

Population demography of northern spotted owls /

Birds and us : a 12,000-year history from cave art to conservation /

The rise of birds : 225 million years of evolution.

Birds of Botswana /

Henry Dresser and Victorian Ornithology : birds, book and business /

Avian flight /

Bird song : biological themes and variations /

Birds of Puerto Rico and the Virgin Islands Fully Revised and Updated Third Edition.

Nature's diplomats : science, internationalism, and preservation, 1920-1960 /

In search of meadowlarks : birds, farms, and food in harmony with the land /

Nature through Tropical Windows /

What is a bird? : an exploration of anatomy, physiology, behavior, and ecology /

How birds evolve : what science reveals about their origin, lives, and diversity /

The action plan for Australian birds 2010 /

Population demography of northern spotted owls /

Ecological Aspects of Social Evolution : Birds and Mammals.

Birds of New Guinea /

Birds of Venezuela /

Oh, Serafina! : a fable of ecology, lunacy, and love /

Why don't jumbo jets flap their wings? : flying animals, flying machines, and how they are different /

A field guide to the birds of Hawaii and the tropical Pacific

Birds of Maine /

Birds of Maine /