
Appearance
At about 14 cm long, it is grey-brown above, white below, with a long white eyebrow. While similar in appearance to the Carolina wren, it has a long tail that is tipped in white.
Naming
This is currently the only species of its genus, "Thryomanes". The Socorro wren, formerly placed here too, is actually a close relative of the house wren complex, as indicated by biogeography and mtDNA NADH dehydrogenase subunit 2 sequence analysis, whereas "Thryomanes" seems not too distant from the Carolina wren.
Distribution
Its range is from southern British Columbia, Nebraska, southern Ontario, and southwestern Pennsylvania, Maryland, south to Mexico, Arkansas and the northern Gulf States. The Bewick's wren does not migrate.
Behavior
The song is loud and melodious, much like the song of other wrens. The song is broken into two or three individual parts; one individual male may exhibit up to twenty-two different variations on the song pattern, and may even throw in a little ventriloquism to vary it even further.
Reproduction
The nest is cup-shaped and located in a nook or cavity of some kind. It lays 5–7 eggs that are white with brown spots. The Bewick's wren produces two broods in a season. Pairs are more or less monogamous when it comes to breeding, but go solitary throughout the winter.
Food
It eats insects and spiders, which it gleans from vegetation or finds on the ground. Wrens are sometimes observed foraging with chickadees and other birds.References:
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