Ridgely, R.S., & P.J. Greenfield (2001). "The Birds of Ecuador - Field Guide". Comstock/Cornell Paperbacks. ISBN 978-0-8014-8721-7
Ridgely, R.S., & P.J. Greenfield (2001). "The Birds of Ecuador - Field Guide". Comstock/Cornell Paperbacks. ISBN 978-0-8014-8721-7