Hi Zach,
I think you can discount the Bell’s Vireo because the white spectacles in your
photo is more distinct than typical for Bell’s and your photo shows two
distinct white wing bars while my National Geographic guide only shows one
wingbar for Bell’s Vireo. That leaves the choice between the Blue-headed and
the Cassin’s vireos. Once again my field guide (NG) says all age Blue-headed
Vireos have a bright olive back which is present in your photo. Cassin’s lack
this coloration. Range maps also favor the Blue-headed Vireo identification.
I hope this helps. Congratulations on getting to bird at High Island!
Jim Crites
Sent from my iPad
On Apr 22, 2023, at 5:06 PM, Zach Schwab <zachary.j.schwab@xxxxxxxxx> wrote:
I found this bird on High Island in Galveston last week. I initially thought
it was a blue-headed vireo, but Merlin says Bell’s or Cassin’s.
Now that I’m comparing pictures, I’m thinking Cassin’s. Can someone confirm?
Any one of them would be a lifer. Lol
Zach
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Sent from my iPhone