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Philadelphia Vireo? (1 Viewer)

4

49bentley

Well-known member
Canada
Can someone please confirm this is a Philadelphia Vireo? Taken in Port Credit Ontario.
Thanks
Chris
 

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RJP said:
Agree with Tennessee Warb. The undertail pattern works for that species as well.
Click to expand...

Actually, the white present on the undertail feathers doesn't work for a Tennessee. This bird fits best a Bay-breasted Warbler imo.
 
Wow. Interesting. I'm definitely an amateur at this. Comparing fall pics I can see online both look good. But shouldn't there be buff or baycolor underneath if it was a Bay-breasted Warbler?? Any other comments on this one.
Thanks Eduardo for your input.
 
Motmot said:
Actually, the white present on the undertail feathers doesn't work for a Tennessee. This bird fits best a Bay-breasted Warbler imo.
Click to expand...
According to my Warblers guide by Dunn and Garrett, male Tennessee has a very similar undertail pattern to Bay-breasted, and both close enough for this bird imo.

On this bird, the eye line would be very heavy for a Bay-breasted, but still it is worth considering.

However, the face pattern doesn't fit for Blackburnian, even 1st year female.
 
RJP said:
According to my Warblers guide by Dunn and Garrett, male Tennessee has a very similar undertail pattern to Bay-breasted, and both close enough for this bird imo.
Click to expand...

That's weird as Tennessee Warblers have a dark tail without any white and Bay-breasteds show big white tail spots.
 
I looked at the Sibley app I have: in there, first winter Tennessee is drawn with an all dark undertail while the adult female has a rather large white area on the central area of it.

Niels
 
The tail spots of the bird in the OP are long, bright white and very contrasting with the dark areas, as found in Bay-breasted. In Tennessee, the spots, when present, are diffuse and small, lacking strong contrasts with the dark areas. Tennessee also has a much shorter tail. Here are three FLMNH specimens of each, 1) Bay-breasted, 2) Tennessee

Andy
 

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