State of the world's birds case studies
Introduction: The importance of birds to biodiversity
State: What we know about the changing state of birds
Pressure: Why birds are declining
Response: What can be done to improve the status of birds
Mallari, N. A. D., Tabaranza, B. R. Jnr and Crosby, M. J. (2001) Key Conservation Sites in the Philippines: a Haribon Foundations and BirdLife International directory of Important Bird Areas. Makati City: Bookmark.