Title: Birds of Peru: Revised and Updated Edition, Author: Thomas S. Schulenberg
Title: Introduction to California Chaparral / Edition 1, Author: Ronald D. Quinn
Title: A Bird-Finding Guide to Panama / Edition 1, Author: George Angehr
Title: The Ecology of Bird Communities / Edition 1, Author: John A. Wiens
Title: Ecology and Management of Cowbirds and Their Hosts: Studies in the Conservation of North American Passerine Birds, Author: James N. M. Smith
Title: Bird Trapping and Bird Banding: A Handbook for Trapping Methods All over the World / Edition 1, Author: Hans Bub