Verification of Unusual Sight Record
For Utah

Rec. # 2017-19

Common name:

Black-throated Green Warbler

Scientific name: Setophaga virens
Date: 27 March 2017
Time: 12:00 pm
Length of time observed: 15 minutes
Number: 1
Sex: Male
Location: Logan
County: Cache
Latilong: 41.7353, -111.856
Elevation:  4446 feet
Distance to bird: 30 feet
Optical equipment: 10x25 binoculars; video recorder with 40x optical zoom
Weather:  Light rain
Light Conditions:  Overcast, but good light
Description:        Size of bird: 5"
(Description:)       Basic Shape: Warbler
(Description:)  Overall Pattern: Bright yellow face; olive and gray above; whitish below
(Description:)            Bill Type: Short, dark bill
Field Marks and
Identifying Characteristics:
Black throat; bright yellow face with olive green eyestripe and cheeks; green crown and back; gray wings with white bars; dark streaks on flanks; whitish underneath with very light yellow below the black throat and in vent area; tail gray in the center with white outer tail feathers.
(video clips:  one &  two)
Song or call & method of delivery:  
Behavior: The bird was foraging in a forsythia bush--quick movements from branch to branch, sometimes flying up a short distance to pick something off a higher branch.
Habitat:  Residential neighborhood bordered by a wooded hill.
Similar species and how
were they eliminated:
Townsend's Warbler--the cheeks were not as dark as Townsend's, and the yellow underneath was lighter.
Hermit Warbler--this bird was more green and had streaked flanks which the Hermit lacks.
Golden-cheeked Warbler--this bird lacked the distinct dark eyeline which the Golden-cheeked has, and had pale yellow underneath which the Golden-cheeked lacks.
Previous experience with
this & similar species:
References consulted:  The Sibley Guide to Birds, 2nd Ed.;
Description from:  From photo(s) taken at the time of the sighting
Observer:  Bonnie Eves
Observer's address:  
Observer's e-mail address: **
Other observers who independently identified this bird:  
Date prepared: 31 March 2017
Additional material: video clips:  one &  two
Additional comments: Although there were no other observers of this bird, members of the Bridgerland Audubon Society have viewed the video clips and verified the identification.