Verification of Unusual
Rec. # 2007-32
|Scientific name:||Dendroica fusca|
|Date:||17 October 2007|
|Length of time observed:||5 minutes|
|Location:||1432 Downington Ave., Salt Lake City|
|Distance to bird:||15 feet|
|Optical equipment:||Leica 10x42 binoculars|
|Weather:||Overcast, intermittent rain, but not raining a time of sighting|
|Light Conditions:||fairly good considering the overcast - no distortion|
|Description: Size of bird:||warbler sized, about the same as nearby chickadees|
|(Description:) Basic Shape:||typical Dendroica warbler|
|(Description:) Overall Pattern:||Mostly grayish/slightly greenish above, pale whitish/cream underneath|
|(Description:) Bill Type:||thin and pointed - warbler type|
Field Marks and
Head: Gray cap with a very prominent, wide, pale, mostly whitish, but slightly
cream-colored eyebrow, dark cheek patch, darker near the top of the patch as to
almost appear as a wide, dark eyeline, pale crescent below the eye, cheek patch
separated from the dark upperparts by a pale area extending behind the patch
from the eyebrow to the throat. The patch formed a point on the lower edge
behind the eye. The throat was pale/whitish or slightly cream-colored. The eye
Upperparts: The bird was mostly facing towards me, so I didn't have a clear view of the lowe part of the back or tail. The back appeared to be mostly dark gray, with darker wings and at least one prominent white wingbar visible (what appeared to be a second wingbar could also be
seen, but was not as noticeable).
Underparts: Very pale/ whitish with slightly more creamy color towards the throat. There wa no streaking on the underparts, except for perhaps some faint streaking along the upper flanks.
I did not see the tail well.
|Song or call & method of delivery:||none heard|
|Behavior:||was sitting still on a branch of a maple tree outside my second-story window|
|Habitat:||residential area with riparian woodland along Emigration Creek|
were they eliminated:
My first thought was a Townsend's Warbler, but this bird had no real yellow on
it, and the face pattern was not quite right (the "jizz" seemed wrong). Then I
noticed the shape of the cheek patch wasn't correct - it came to a point on the
lower edge behind the eye. The upper parts seemed too gray, and not green
enough, for Townsend's as well.
I eliminated Yellow-rumped, Grace's and Black-throated Gray by the clearly separated cheek patch, and lack of streaking on the underparts.
Yellow-throated Warbler was eliminated by the lack of yellow in the throat.
The head pattern was inconsistent with other wablers and vireos.
this & similar species:
I have seen this and all similar species many times.
|References consulted:||Dunn & Garrett, Warblers Guide|
|Description from:||Notes taken at time of sighting|
|Observer's address:||1432 Downington Ave, Salt Lake City, UT 84105|
|Observer's e-mail address:||firstname.lastname@example.org|
|Other observers who independently identified this bird:||none so far|
|Date prepared:||17 October 2007|
|Additional Comments:||I thought that this would be a late date for a vagrant Blackburnian, as they migrate rather early in the East, but the date is perfect for vagrants in the West, with the majority of the records being in the fall, peaking in late September through mid-October, with the date range being August through December.|