- U.S. Fish and Wildlife Service
 - Official site. Mission is to conserve, protect, and enhance the nation's fish and wildlife and their habitats for the continuing benefit of people. - National Image Library
- Public domain still photographs of wildlife, plants, National Wildlife Refuges, and other scenic images.
- National Wildlife Refuge System
- Endangered Species Program (3)
- Office of Law Enforcement (2)
- Invasive Species Program
- Activities to prevent and control invasive plant and animal species that severely impact the lands and waters of the United States.
- Office of Migratory Bird Management
- Information on migratory birds, including waterfowl. Reports and information on the conservation, management and monitoring of migratory bird populations.
- National Conservation Training Center
- U.S Fish and Wildlife Service training facility for conservation professionals from both public and private sectors.
- Partners for Fish and Wildlife Program
- Promoting voluntary habitat restoration in cooperation with private landowners.
- Fisheries and Habitat Conservation
- International Affairs
- Working multilaterally with partners and nations in the implementation of International treaties, conventions, and projects.
- North Carolina Ecologial Services
- Lists federally threatened and endangered species for North Carolina, habitat restoration activities for rare species, and trust resources.
- Federal Wildlife Officers Association
- Division of Environmental Quality
- Virtual News Room
- Online news reports for animal lovers and conservationists.
- Division of Bird Habitat Conservation (3)
- Desert National Wildlife Refuge Complex
- Contains information, maps, and pictures for Ash Meadows, Desert Range, Moapa Valley, and Pahranagat National Wildlife Refuges.
- Division of Realty (1)
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