Pennsylvania Elk Herd
- Detailed information about elk in Pennsylvania and other populations of Cervus elaphus in North America.
- http://pittsburgh.about.com/cs/pennsylvania/a/elk.htm

Red Deer (Cervas elaphus)
- Photographs and movies and a description of this species and information on its range and biology.
- http://www.arkive.org/species/ARK/mammals/Cervus_elaphus/