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RIS is a keyworded catalog of over 40,000 references about the biology and management of birds of prey. It includes books, articles, theses, government reports, and other gray literature regarding raptors worldwide.

You can search by author, title, keyword, year of publication... or any combination of these fields. You can also search for articles on a particular raptor species by typing in the genus and the species or by referring to an extensive 4,000 keyword list.


The Raptor Information System (RIS) collection and bibliographic database have been transferred to The Peregrine Fund.  The RIS records are gradually being subsumed into the bibliography posted on the website of the Global Raptor Information Network (GRIN) (, just as the paper copies from the RIS are being integrated into The Peregrine Fund Research Library collections. 


Currently you may continue use this website to search for literature, and you may use GRIN website ( site for additional searching.


Requests for publications may be sent to


RIS is a service of the USGS, Forest and Rangeland Ecosystem Science Center, Snake River Field Station.
Development of the RIS as a web-based information resource is part of the National Biological Information Infrastructure program.
For further information or assistance contact Your comments about this website are appreciated.

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