British and European Ungulates: Descriptions of the deer, wild goats, and sheep of Britain and Europe by Mark Walker.
British Deer: About the biology, ecology, and history of the six species of deer found wild in the UK (roe, red, fallow, sika, muntjac, and Chinese water deer).
DeerNet: University of Alberta compendium on the ecology, management, and economic utilization of hoofed mammals.
Family Cervidae: A description of the deer family.
Muntjak (Muntiacus muntjak): Photo and facts on behavior and identifying characteristics of this species.
World Deer: Provides photos and species accounts. Includes overview of biology of species in this family.