Animals

Endangered Species

Wildlife Wars

The best animal stories you never knew

A Bestiary of Imaginary Species

Of Man and Beast

All Things Reconsidered

Predators I Have Known

Angling Sketches

Bears I Have Met—and Others

The Natural History of Cage Birds

The Amphibians and Reptiles of Michoacán, México

True Bear Stories

Insect Stories

A Bird-Lover in the West

The Genera of Phyllomedusine Frogs (Anura: Hylidae)

A Check-List of the Birds of Idaho

False Knees

Condor

The Wool Industry a Global History

Riding Home