Sunday, September 17, 2006

Winter Wren

The adult winter wren grows to a length of four inches (10 centimeters), weighs 1/2 ounce (14 grams), and has a wingspan of five inches (13 centimeters). The adult male and female are both light brown with off-white breast feathers. The juvenile is a lighter color than the adults. The winter wren has a short, pointed bill.

The winter wren lives in the woods and bushy areas as well as rocky areas and open marshes. It is a remarkable bird in that it can adapt to any environment that has plenty of thick plants and vegetation. The winter wren, however, is more common in the country than it is in urban areas.

Although its name might suggest that it likes cold temperatures, the winter wren has a hard time living through long periods of freezing temperatures. Its small body looses heat very quickly. Also, the winter wren has a hard time finding insects to eat when the ground is covered with snow. It often gets together with other winter wrens in what is called a community. The community is formed when birds attract one another with a series of loud calls. The small community of birds often uses an abandoned building or nest as a roosting site. When a bird rests or sleeps it is said to be roosting.

The winter wrens lives on a diet of insects, spiders, small beetles, craneflies, mosquitos, ants, aphids, and spiders. It also eats the pupae of butterflies and moths. The pupae is the immature insect in the cocoon stage, or when it is wrapped in a thin skin. The winter wren also eats snails, slugs, and an occasional small fish and moth. The small bird works hard for its food. It leaps from branch to branch searching leaves and vegetation for insects.

The breeding season for the winter wren is from April to July. The winter wren is ready to breed at the age of one year. During the breeding season, the male winter wren is territorial. This means he does not like other male winter wrens to be near. He claims his territory by sitting high on a tree branch and singing loudly. He also keeps busy building nests within his territory. A male winter wren usually builds two or three nests during mating season in an attempt to attract a female to his territory. When a female arrives, she immediately begins lining her chosen nest with feathers, preparing it for the laying of her eggs.

In April, the female lays and incubates her eggs, which are white with brown spots. A bird incubates its eggs by gently sitting on them and using the warmth from its body to heat the eggs. Eggs do not hatch if they are not incubated. After about two weeks the clutch, or group, of eggs hatch. The male helps the female feed the young. The male often has more than one nest to tend as he frequently has more than one mate. The young are able to fly after about 16 to 17 days.

The life span of the winter wren is unknown.

Source: Encyclopedia of Animals
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