Common NameBell's Vireo
Scientific NameVireo bellii
Type of ReportRare Species
Date of Observation10/15/2021
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Number Observed1
Reporting Observer's NameKyle Jones
Mailing Address22 Blue Moon Rd
South Strafford, VT 05070
United States
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EmailEmail hidden; Javascript is required.
Date Completed10/20/2021
Names & Emails of Other Contributing Observers

Observed by many over the following days--currently in 30+ eBird checklists, many with fantastic photographs and descriptions.
Second to find it, I believe, was Wayne Scott: https://ebird.org/checklist/S96239944
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Latitude of Observation (enter 0 if unable to provide)43°37'56.7"N
Longitude of Observation (enter 0 if unable to provide)72°30'33.4"W
Place NameOttauquechee River Trail
TownshipWoodstock
CountyWindsor
Vermont eBird Checklist URLebird.org
Time of Day08:20 AM
Length of Time Observed6 minutes
Maximum Estimated Distance from Bird (in feet)40
Minimum Estimated Distance from Bird (in feet)15
Noteworthy Weather Conditions

Clear but with good light, light breeze. Temps above freezing (no fall frost yet at this location).

Optical Equipment Used for Observation

7x Nikon Monarch
Canon EOS7D w 75-300mm zoom

Observer’s Previous Acquaintance With This or Similar Species

I have seen both this race and the western type in previous years, in expected range, not as a vagrant. I am familiar with similar North American vireos.

I certify that any attachments included with this report were captured during this observation event​​.
Description of Habitat

Shrubby field edge under a powerline, adjacent fields have been fallow the past few years. There was also a red-eyed vireo nearby. I did not see them simultaneously but in essentially the same vegetation and distance for comparison.

Behaviors Observed

Not remarkable. I did not notice the tail flicking attributed to this species.

Description of Vocalizations

None noted.

Verbal Narrative & Description of Observation

My first impression was of a kinglet because of the size and color. It may have been flicking it’s wings but I don’t remember for sure. I soon realized it was a vireo. Then it was a question of Philadelphia or Warbling. Fortunately Nathaniel Sharp noted in the photographs I posted that the field marks were better suited for Bell’s. First Vermont eBird record.

Very small vireo with a faint dark eye line, including the lores, white throat and breast with yellow on the flanks and a yellowish wash to the back. Gray on the back of the head and the wings, white wing bar on each wing. In photos the tail appears proportionally longer than it should for a Philly Vireo. There appears to be some paleness to the base of the bill. Yellowish wash to the flanks and bluish legs indicate it may be of the eastern population bellii/medius.

Relative Size & Shape

Smaller than the nearby red-eyed vireo. Not too dis-similar in size to a ruby-crowned kinglet.

Head

Please see above description (and eBird checklist) for the description.

IMPORTANT: What similar species were eliminated when making the identification and how was this bird different?

Clearly undersized and not as boldly marked as red-eyed vireo.
No spectacles as in white-eyed, yellow-throated vireos.
Separating this bird from the slightly similar Blue-headed Vireo: No blue head, lacked the strong white spectacles. Tiny.
I first identified this bird as a probable Philadelphia Vireo based on season and yellowish flanks (no October warbling vireo records for Windsor County). Nathaniel Sharp suggested Bell's Vireo and that fit much better.

Other Notes & Comments

As noted above, it appears to be of the eastern population bellii/medius.

I was able to observe the bird again in the same area on 10/19/2021 https://ebird.org/vt/checklist/S96428864

This report was written from notes taken:Written from Memory