- PUERTO RICO'S BIRDS IN PHOTOGRAPHS 2nd edition, 2000 by Mark W. Oberle Para continuar en espa ol, haga clic aqui Now available: Puerto Rico's first book to illustrate in color photographs all breeding birds and regular migrants. Over 300 color photos of 181 species of Puerto Rican birds are included. The English text is designed for students, teachers, tourists, and anyone who wants to ...www.mindspring.com/~oberle/puertorico-birds.htm
- Bird Checklists of the United States Puerto Rico Key to Symbols Note: Refuges that are indented are administered by another Refuge or are one of several refuges included in a Refuge Complex. Buck Island National Wildlife Refuge PR Cabo Rojo National Wildlife Refuges (Printed 11/93) Cabo Rojo National Wildlife Refuge -- Boquerón, PR Cabo Rojo Salt Flats (Private) -- Boquerón, PR ...www.npwrc.usgs.gov/resource/othrdata/chekbird/other/puerto.htm