Carolina Wren

Description:

Typically 14 cm long (6–7 in) and about 20 g in weight, it is a fairly large wren; among the United States species it is second largest after the Cactus Wren. The upperparts are rufous brown, and the underparts a strong orange-buff, usually unmarked but faintly barred on the flanks in the southwest of the range. The head has a striking pure white supercilium (eyebrow) and a whitish throat. The race albinucha is duller brown above and has additional white streaking on the head. Females typically lay between four to six eggs (normally over a period of several days) up to three times per year (but normally only twice). Eggs are oval, grayish-white and sprinkled with reddish-brown spots. Incubation is performed by the female only and lasts anywhere from 12–14 days, with the first young leaving the nest 12–14 days after hatching. Chicks hatch bald and blind, and depend upon parents until fledging. Both the male and female feed the young. They only brood for a short period of time after hatching, leaving the young in a warm, down-lined nest while adults search for food. If conditions are right, the same nest may be used more than once.

Habitat:

The Carolina Wren (Thryothorus ludovicianus) is a common species of wren, resident in the eastern half of the USA, the extreme south of Ontario, Canada, and the extreme northeast of Mexico. A distinct population in the Yucatan Peninsula of Mexico, Belize and extreme north of Guatemala is treated either as a subspecies Thryothorus ludovicianus albinucha, or as a separate species, White-browed Wren Thryothorus albinucha. Following a 2006 review, these are the only wrens remaining in the genus Thryothorus. T. ludovicianus is the state bird of South Carolina; its specific name ludovicianus means "from Louisiana".

Notes:

The Carolina Wren is sensitive to cold weather. Since they do not migrate and stay in one territory the northern populations of Carolina wrens decrease markedly after severe winters. Because of this sensitivity to weather, gradually increasing temperatures over the last century may have been responsible for the northward range expansion seen in the mid-1900s. Family:Troglodytidae Genus:Thryothorus