Timber Press
Birds of the Pacific Northwest (A Timber Press Field Guide)
R 1,183
Sinauer Associates is an imprint of Oxford University Press
Vertebrate Life
R 5,193
Firefly Books
How Birds Fly: The Science and Art of Avian Flight
R 1,544
National Geographic
National Geographic Field Guide to the Birds of the United States and Canada―East, 2nd Edition
R 1,007
Harper
Hummingbirds: A Life-size Guide to Every Species
R 910
Princeton University Press
Birds of Mexico and Central America (Princeton Illustrated Checklists)
R 955
Basic Books
Ten Birds That Changed the World
R 1,014
Atria Books
What the Chicken Knows: A New Appreciation of the World's Most Familiar Bird
R 475
National Geographic
National Geographic Field Guide to the Birds of the United States and Canada―West, 2nd Edition
R 1,189
Storey Publishing
The Chicken Encyclopedia: An Illustrated Reference
R 408