Sighting Record for Utah

Common name:	Chestnut-sided Warbler
Scientific name:	(Dendroica pensylvanica) [Setophaga pensylvanica]
Date:	October 5-7, 2011
Time:	various
Length of time observed:	~ 30 min.
Number:	1
Age:	first fall male (or ad. female)
Sex:	fall male (or ad. female)
Location:	Tonaquint Park, St. George
County:	Washington
Latilong:	19
Elevation:	~ 870
Distance to bird:	~ 10 -15 m.
Optical equipment:	8 x 42 binoculars
Weather:	various
Light Conditions:	various
Description: Size of bird:
(Description:) Basic Shape:
(Description:) Overall Pattern:
(Description:) Bill Type:
(Description:) Field Marks and Identifying Characteristics:	Observed a hatch-year female type Chestnut-sided Warbler at the pond at Tonaquint while watching the Prothonotary Warbler. Later I thought I relocated this warbler but noticed there was a second CS Warbler present with faint rufous/chestnut streaking along the sides (first fall male or adult female type). I viewed both warblers foraging together in a willow on October 6th. Present through at least October 7th. Description: Medium sized, chunky warbler. Uppersides: bright lime green crown, mantle, and rump, dark olive-gray wings with prominent yellowish white wingbars, and thin yellow edging on the secondaries and primaries, and broader yellow-white edging on tertials. Gray face with black eye and complete distinct white eye-ring. Undersides white from chin to undertail coverts; grayish wash at sides of upper breast and chestnut wash extending along sides to flanks. Tail feathers dark with white edges when perched, flashing white outer rectrices in flight; underside of tail white with black teardrops at tips of outer rectrices. Dark gray bill legs and feet. (see photos)
Song or call & method of delivery:	occasional 'chip' similar to a Yellow Warbler
Behavior:	foraging mid-story
Habitat:	dense willows and cottonwoods around pond.
Similar species and how were they eliminated:
Previous experience with this & similar species:	yes
References consulted:
Description from:
Observer:	Rick Fridell
Observer's address:	Hurricane, UT
Observer's e-mail address:	rfridell@redrock.net
Other observers who independently identified this bird:
Date prepared:	11-18-2011
Additional material:	Photos
Additional_Comments:	information copied from field notes