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The winter wren nests mostly in coniferous forests, especially those of spruce and fir, where it is often identified by its long and exuberant song. Although it is an insectivore , it can remain in moderately cold and even snowy climates by foraging for insects on substrates such as bark and fallen logs.
Nest cavities are usually a few meters above ground at most, [21] [22] but occasionally on cliffs as high up as 15 m (49 ft) and more at least in southern populations [verification needed]; they may be natural or man-made, often using bird houses. Northern house wrens are feisty and pugnacious animals considering their tiny size.
Troglodytes [a] is a genus of small passerine birds in the wren family. These wrens are around 11–13 centimetres (4.3–5.1 in) long. They are brownish above and somewhat paler below, with strong legs.
The house wren complex has been split into eight species: Northern house wren, Troglodytes aedon; Southern house wren, Troglodytes musculus; Cozumel wren, Troglodytes beani; Kalinago wren, Troglodytes martinicensis; St. Lucia wren, Troglodytes mesoleucus; St. Vincent wren, Troglodytes musicus; Grenada wren, Troglodytes grenadensis; Cobb's wren ...
Bewick's wrens will repeatedly wipe their beaks on its perch after a meal. Bewick's wrens will visit backyard feeders. They will eat suet, peanut hearts, hulled sunflower seeds, and mealworms. [15] Like many insect-eating birds, the Bewick's wren widens its diet to include seeds in the winter. [16]
As these wrens are year-round residents, they are at a higher risk than other species to acquire mercury in their blood. Nest abandonment and failure to raise young are more common with higher mercury content. [38] Exposure, and prolonged periods of cold, ice, and snow is thought to affect the wren nestling and adult populations, respectively. [17]
The Pacific wren nests mostly in coniferous forests, especially those of spruce and fir, where it is often identified by its long and exuberant song.Although it is an insectivore, it can remain in moderately cold and even snowy climates by foraging for insects on substrates such as bark and fallen logs.
In Anglophone regions, the Eurasian wren is commonly known simply as the "wren", as it is the originator of the name. The name wren has been applied to other, unrelated birds, particularly the New Zealand wrens (Acanthisittidae) and the Australian wrens . Most wrens are visually inconspicuous though they have loud and often complex songs.