Sighting Record for Utah

Common name:	White-eyed Vireo
Scientific name:	Vireo griseus
Date:	9-10-2019
Time:	8:45 am
Length of time observed:	~20 seconds
Number:	1
Age:	Unknown
Sex:	Unknown
Location:	North Arm Natural Area, Eden, Utah
County:	Weber
Latilong:
Elevation:
Distance to bird:	35-45
Optical equipment:	Pentax 10x50 DCF SP Binoculars
Weather:	Partly cloudy
Light Conditions:	Great. Sun had just came out and was at my back.
Description: Size of bird:	4-5
(Description:) Basic Shape:	Warbler-like.
(Description:) Overall Pattern:	Yellowish & Gray/Green
(Description:) Bill Type:	Vireo.
(Description:) Field Marks and Identifying Characteristics:	First observed the bird foraging low in a stand of young willows. The first field mark I noticed was the wing bars on dark grayish wings with yellow underside that was absent of any streaking. The bird then flew ~6 away and landed facing away which allowed me to observe the yellow undertail. After another short flight of around 6-8 it sat up and turned itself to the left which was my first look at the bright yellow spectacles set on a gray head with much lighter throat. During my brief looks I didn t notice a pale iris or what color the iris even was. It then flew into a thicker group of dense trees and I was unable to find the bird afterwards despite other attempts later in the day. Looks were brief, but diagnostic.
Song or call & method of delivery:	None given while I was observing the bird and once I started listening for the calls and/or song.
Behavior:	Actively moving through willows just above the grass line. Not as flitty as a Ruby-crowned Kinglet would be, but more active than a Sparrow.
Habitat:	Young, thick stand of willow saplings surrounded by much taller, more mature willow-type trees and shrubs.
Similar species and how were they eliminated:	Kentucky Warbler- doesn t have wing bars. Blue-winged Warbler - dark eye-line. Grace s Warbler- White under tail. Thick-billed Vireo, Yellow-throated Vireo, Cassin s Vireo- doesn t have yellow under tail. Other vireos either don t have spectacles or they re not bright yellow. Empids don t have spectacles . Tanagers too large.
Previous experience with this & similar species:	Have seen this species multiple times in Illinois, Louisiana, and Texas
References consulted:	Memory, Sibley app, Warbler Guide. (More for eliminating other possibilities than to ID)
Description from:	From memory
Observer:	Mike Hearell
Observer's address:	North Ogden, UT
Observer's e-mail address:	**
Other observers who independently identified this bird:	I notified others of my sighting, but as of the writing of this report, I m the only one that observed the bird.
Date prepared:	9-10-2019
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