Behavior
Deer are browsers. During the winter and early spring, they feed on Douglas-fir, western red cedar, red huckleberry, salal, deer fern, and lichens growing on trees. Late spring to fall, they consume grasses, blackberries, fireweed, pearly everlasting, forbs, salmonberry, salal, and maple. The mating or 'rutting' season occurs during November and early December. Bucks can be observed running back and forth across the roads in the pursuit of does. After the rut, the bucks tend to hide and rest, often nursing wounds. They suffer broken antlers, and have lost weight. They drop their antlers between January and March. Antlers on the forest floor provide a source of calcium and other nutrients to other forest inhabitants. Bucks regrow their antlers beginning in April through to August.
The gestation period for does is six to seven months, with fawns being born in late May and into June. Twins are the rule, although young does often have only single fawns. Triplets can also occur. Fawns weigh 2.7 to 4 kg and have no scent for the first week or so. This enables the mother to leave the fawn hidden while she goes off to browse and replenish her body after giving birth. She must also eat enough to produce enough milk to feed her fawns. Although does are excellent mothers, fawn mortality rate is 45 to 70%. Does are very protective of their young and humans are viewed as predators.
Deer communicate with the aid of scent and pheromones from several glands located on the lower legs. The metatarsal (outside of lower leg) produces an alarm scent, the tarsal (inside of hock) serves for mutual recognition and the interdigital (between the toes) leave a scent trail when deer travel. Deer have excellent sight and smell. Their large ears can move independently of each other and pick up any unusual sounds that may signal danger.
At dawn and dusk and moonlit nights, deer are seen browsing on the roadside. Wooded areas with forests on both sides of the road and open, grassy areas, i.e. golf courses, attract deer. Caution when driving is prudent because often as one deer crosses, another one or two follow.
Read more about this topic: Black-tailed Deer
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—P.J. (Patrick Jake)
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—Ellen Galinsky (20th century)