Animals-Wild-Birds
Free to read here, from Project Gutenberg.
A Bird-Lover in the West
Birds of the Rockies
The Bird Book
Bird Stories
Birds, Illustrated by Color Photography, Vol. 1, No. 4
The Foot-path Way
Color Key to North American Birds
Antarctic Penguins: A Study of Their Social Habits
Little Brothers of the Air
What bird is that?
In Nesting Time
Argentine Ornithology, Volume 1 (of 2)
Birds, Illustrated by Color Photography, Vol. 1, No. 5
Birds and Bees, Sharp Eyes, and Other Papers
The Curious Book of Birds
Birds in the Calendar
Birds of the Indian Hills
Ducks and Geese
Birds, Illustrated by Color Photography, Vol. 1, No. 3
Birds Every Child Should Know
An Australian Bird Book: A Pocket Book for Field Use
Birds, Illustrated by Color Photography, Vol. 1, No. 1
British Birds in Their Haunts
Friends in Feathers and Fur, and Other Neighbors: For Young Folks
Love's Meinie: Three Lectures on Greek and English Birds
Birds, Illustrated by Color Photography, Vol. 2, No. 2
Ducks at a Distance: A Waterfowl Identification Guide
The Breeding Birds of Kansas
Birds and Man
Our Bird Comrades
Bird Houses Boys Can Build
The Argus Pheasant
The Woodpeckers
The Bird Study Book
Birds in the Bush
The Nests and Eggs of Indian Birds, Volume 1
A Quantitative Study of the Nocturnal Migration of Birds
Territory in Bird Life
Birds, Illustrated by Color Photography, Vol. 1, No. 6
The Song of the Cardinal
Birds of Guernsey (1879)
Bird Stories from Burroughs
A Bird Calendar for Northern India
Game Birds and Game Fishes of the Pacific Coast
Birds, Illustrated by Color Photography, Vol. 1, No. 2
Birds, Illustrated by Color Photography, Vol. 2, No. 5
Dickey Downy: The Autobiography of a Bird
