Friends of the Patuxent Wildlife Research Center
- Working to support the missions and programs of the Patuxent Research Refuge and the Patuxent Wildlife Research Center. Events, profile, newsletter and membership information.
- http://www.friendspwrc.org/

Patuxent Research Refuge
- Established in 1936 by executive order of President Franklin D. Roosevelt, the Patuxent Research Refuge is the Nation's only National Wildlife Refuge established to support wildlife research. Events and profile.
- http://www.fws.gov/northeast/patuxent/

USGS Patuxent Wildlife Research Center
- Features details on its research on a variety of animal life, birds and their surrounding environment. Includes news and publications, research notes, and contacts.
- http://www.pwrc.usgs.gov/