![]() A House wren nesting box can be as small as 10 x 10 x 10cm with a 2.5cm entrance/exit hole. These small birds are easily supported with nesting boxes, so long as they’re small enough to prevent use by larger songbirds. House wrens certainly nest in backyards if there are valid nesting cavities, either natural or artificial. This is thought to reduce parasitic mite infestations and other insects that have taken residence among the nesting materials. When reusing nests, the male typically excavates the cavity and removes most sticks. Do House Wrens nest in the same place every year? However, relatively open sites are preferred over those within dense foliage or tree cover. ![]() House wrens prefer to stay within 30m or so of woodland or forests. Most nesting sites are built close to the ground, but some have been found at the height of 30ft or so. In addition, nests have been found in boots, shoes, and a multitude of other small artificial cavities. They don’t seem to have a preference for tree species.Īrtificial nesting sites range from cavities in rotting or decaying structures to novel choices like coat pockets, tin cans, ornaments, abandoned vehicles, and machinery. Some cavities are natural, e.g., in a dying, damaged, or diseased tree, whereas others are the remnants of other cavity-nesting birds, such as kingfishers, American robins, swallows, and woodpeckers. Nests are chosen in a huge variety of small cavities, but House wrens prefer pre-formed cavities in trees. Habitats vary, ranging from various lowland and upland forests and woodlands to parks and human settlements. They have one of the widest ranges of any songbird in the Americas. House wrens nest across virtually every US state, southern and mid-Canada, and more or less the entirety of Central and South America.
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