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Photo by Jim Parrish
Photo Copyright Jim Parrish
American redstart
Setophaga ruticilla
NatureServe conservation status
Global (G-rank): G5
State (S-rank): S3
External links
Species range
(Hayward et al. (1976) reported that this species nested "in streamside woodlands near Provo in the early 1930s" and reviewed early records (that seem suggestive of breeding) for Salt Lake, Summit, Utah, Weber, and Uintah County. Behle (1981) summarized records for Uintah County, including a summer-taken specimen, and Walters and Sorensen (1983) indicated its presence in this area of northeastern Utah in summer but with breeding not confirmed.
Historical nesting records are known from Weber, Morgan, Salt Lake, and Utah counties. One historical nesting record of uncertain location may have been in Emery County. Occurrences without confirmation of nesting are also known from Box Elder, Davis, Summit, Duchesne, Uintah, and Garfield counties. G. V. Oliver 2001)
Habitat
Woodbury et al. (1949) stated that in Utah this species breeds "in deciduous trees of valleys and low canyons", and Hayward et al. (1976) repeated these words verbatim though without indication that they were quoting. Behle (1981) said that this species in northeastern Utah occurs in "deciduous woodlands in the lowland valleys and river bottomlands, especially riparian growths of shrubby vegetation such as willows." Walters and Sorensen (1983) indicated that in Utah both the breeding and the migrating habitats of this species are montane riparian woodlands (including narrow-leafed cottonwood, big-toothed maple, box elder, river birch, dogwood, alder, willows, etc., at lower [sic] elevations) and desert riparian woodlands (including Fremont cottonwood, willows, etc., at lower elevations), and that in both habitats nesting is known in Utah. Behle et al. (1985) mentioned that in Utah this species is "usually found in riparian vegetation in valleys and canyon bottoms at mid-elevations."
Threats or limiting factors
(Threats to this species in Utah are not understood. Loss of riparian habitat likely is a threat. G. V. Oliver 2001)
