Aves de Chile	http://mantruc.com/rincon/aves.htm
Aves de Chile	http://www.avesdechile.cl/
Aves de Chile	http://www.ccpo.odu.edu/~andres/aves/
Handbook of the Birds of the World	http://www.hbw.com/index.html
Raptor Information System	http://ris.wr.usgs.gov/
Raptor Research Foundation	http://biology.boisestate.edu/raptor/
The Raptor Center	http://www.raptor.cvm.umn.edu/
The World Working Group on Birds of Prey and Owls	http://www.raptors-international.de/
Carolina Raptor Center	http://www.birdsofprey.org/
Canadian Peregrine Foundation	http://www.peregrine-foundation.ca/
Western Cape Raptor Research Programme	http://web.uct.ac.za/depts/fitzpatrick/docs/raptor.html
The Raptor Trust	http://www.theraptortrust.freeserve.co.uk/index.htm
The Owl Pages: Information about Owls	http://www.owlpages.com/