Bird Species: How They Arise, Modify and Vanish

Tietze, Dieter Thomas (Editor)

Extinct Birds

Fuller, Errol

Galapagos Discovery on Darwin's Islands

Steadman, David W.; Zousmer, Steven

Unnatural Selection

Van Grouw, Katrina

The Evolution of Flight

Glaeser, Georg, Hannes F. Paulus, and Werner Nachtigall

Extinct Birds

Fuller, Errol

Avian Evolution: The Fossil Record of Birds and its Paleobiological Significance

Mayr, Gerald

Darwin's Finches [PB]

Lack, David

Inheritance and Natural History

Berry, R.J.

A History of Birds [1910]

Pycraft, W.P

Birds of Stone: Chinese Avian Fossils from the Age of Dinosaurs

Chiappe, Luis M.; Meng Qingjin

Coevolution

Futuyama, Douglas J. and Montgomery Slatkin, Editors.