"Red-tailed Hawk," Microsoft(R) Encarta(R) 96 Encyclopedia. (c) 1993-1995 Microsoft Corporation. All rights reserved.
Copyright © 1995, 1996, 1997 Juhani Kyyrö, Hannu Ekblom, Ilkka Heiskanen & Hannu Hautala All rights reserved.
Museum of Natural History. All Rights Reserved.