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Twenty-spotted lady beetles and house wrens, for example, abound in the Dodger Stadium parking lot.

For the second year in a row, a pair of house wrens moved into a bird box we put up in our backyard.

Although the houses are designed for bluebirds, they also provide nesting spots for tree swallows and house wrens.

A pair of house wrens has nested in the birdhouse we put up.

The paper looked at about a dozen songbird species, including the American robin, red-faced warbler, and other arboreal species, as well as ground-dwelling birds like the house wren and white-breasted nuthatch.