Cottontail Rabbits - Fact sheet from Connecticut Department of Environmental Protection discusses the New England Cottontail (Sylvilagus transitionalis) and Eastern Cottontail (S. floridanus). - http://www.ct.gov/dep/cwp/view.asp?a=2723&q=325996&depNav_GID=1655
Swamp Rabbit (Sylvilagus aquaticus) - Fact sheet from The Mammals of Texas includes photo, physical description, range within the state, and habits. - http://www.nsrl.ttu.edu/tmot1/sylvaqua.htm
Eastern Cottontail (Sylvilagus floridanus) - Fact sheet from The Mammals of Texas includes photo, physical description, range within the state, and habits. - http://www.nsrl.ttu.edu/tmot1/sylvflor.htm
Desert Cottontail (Sylvilagus audubonii) - Fact sheet from The Mammals of Texas includes photo, physical description, range within the state, and habits. - http://www.nsrl.ttu.edu/tmot1/sylvaudu.htm