ML624414072

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פרטי השורה

**Rare** Seen foraging alone or loosely with a couple chickadees, kinglet and nuthatch at low to mid-levels of the riparian corridor. Thick-bill and white spectacles clearly pointed to a member of the 'Solitary' Vireo group and the brighter flanks and green back quickly eliminated Plumbeous. Knowing that bright CAVIs this time of year can be difficult to separate from BHVI, I tentatively listed as CAVI/BHVI. Later I was able to examine my photos and note the clear white throat, sharply contrasting with the steely bluish-gray auriculars, dark lores which contrast little with hood color, tidy white spectacles with dark 'shadow' at upper border giving increased contrast and delineation from the gray crown, yellow flanks with greenish in them (depending on light), greenish back contrasting with gray hood and yellow vent strap. So far, all opinions that I have received about this bird have said it's a Blue-headed Vireo over a Cassin's, but as this is a tricky ID, I welcome any options people have about this bird.

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