Birds

The Bird Watcher in the Shetlands, with Some Notes on Seals—and Digressions

Antarctic Penguins: A Study of Their Social Habits

The Migration of Birds

Thoracic and Coracoid Arteries In Two Families of Birds, Columbidae and Hirundinidae

Food Habits of the Thrushes of the United States

In Nesting Time

Birds of Britain

A Manual of Bird Study. A Description of Twenty-Five Local Birds with Study Options

Travels in a Tree-top

Bird Guide Water Birds, Game Birds, and Birds of Prey

Gifts of an Eagle

A Bird-Lover in the West

The Natural History of Cage Birds

Bird-Friendly Nest Boxes & Feeders

Know Your Owls

Conures

Lovebirds

Budgies

Bird Stories from Burroughs

Condor