Thomas M. Brooks, John D. Pilgrim, Ana S. L. Rodrigues & Gustavo A. B. Da Fonseca.Conservation status and geographic distribution of avian evolutionary history // Phylogeny and Conservation (англ.) / Andy Purvis, John L. Gittleman & Thomas Brooks. — Cambridge University Press, 2005. — Vol. 8. — P. 267—294. — (Conservation Biology). — ISBN 978-0-521-82502-3.