A whitetail consumes about 5 to 9 pounds (2.25 to 4 kilograms) in food daily. About 0.88 ounces for every pound (25 grams for every kilogram) of body weight is the daily requirement in summer. About 0.7 ounces for every pound (20 grams for every kilogram) of body weight is necessary in winter.
Synecology: natural predators
Synecology (Greek: σύν, syn, “with” + oικoλoγία, ecologia, “house” + “study”) identifies organisms which regularly coexist with white-tailed deer in their native habitats. Regular cohabitants include natural predators, which represent the carnivorous trophic (Greek: τροφή, trophē, "food, feeding") level in the food chain.
Natural predators in North America include humans, bears (family Ursidae), coyotes (Canis latrans), grey wolves (Canis lupus), and mountain lions (Puma concolor).
In South America whitetails are preyed upon by jaguars (genus Panthera), ocelots (Leopardus pardalis), and forest foxes (Cerdocyon thous).
Universal familiarity: memorable images everywhere
The grace of whitetails and the majesty of white-tailed bucks are familiar images throughout the world. This familiarity is perhaps due to Walt Disney's beloved film, "Bambi," but it is certainly due to successful introductions of these magnificent mammals elsewhere in the world.
Whitetails were successfully introduced in the 1890s into the Dobříš Forest in the Central Bohemian Region (Czech: Středočeský kraj) of modern-day Czech Republic.
Whitetails from New Hampshire were successfully transplanted around 1905 onto Stewart Island (Maori: Rakiura, "Glowing Skies"), located south of South Island (Maori: Te Wai Pounamu, "water of greenstone [jade]") the larger of New Zealand's two major islands. A second herd was subsequently established at the head of Lake Wakatipu in South Island's southern region of Otago.
Transplanted to Pirkanmaa Province (Pirkanmaan maakunta) in southwestern Finland in 1934, whitetails are recognized as the provincial animal there.