wren
song sparrow
wren
song sparrow
The female wren does.
Commensalism.
The Osprey builds a nest but doesn't live in it and then the wren lives in the nooks and crannies of the nest.
North American Wrens which there are 9 types, are secretive. They (House Wren, Carolina Wren, Rock Wren, Canyon Wren) will nest in holes, trees and birdhouses. The Marsh Wren makes a globe-shaped nest which are attached to plants just above the water. Cacus Wren builds a nest shaped like a football in cacti.
A wren is a bird so a good sentence would be: There is a wren that built a nest in my backyard