And not just the males sing - females sometimes sing from the nest! While they are not endangered as a species, their numbers are declining, and they are endangered in some areas. House Wrens will build a nest in rubber tires, Christmas wreaths and even old boots. It is important to place bird feeders near cover, such as a bush or hedge, so that the birds at your feeder have a place to escape and hide from this quick and agile predator. They have a complex sort of communication which includes sound and body language.
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