Rock wrens are indigenous to rocky outcrops of all elevations. The population trend of this nongame species is unknown. Rock wrens are insectivorous. Nests are usually built in rock crevices out of grass and moss. Nesting occurs from April through July. Two to three broods are often raised. Three to 10 eggs are laid, one a day, after which there is a 14 day incubation period. Fledging occurs after another 14 days. After breeding, many of the birds move to high elevations, but they will spend the winter at lower elevations.