Wouldn't a Black-throated Green have a yellow wash across the vent?
Maitreya
23-Jun-2011 17:11
Both halves of the equation are Black-throated Green Warbler. Regardless of the irresponsible speculation, no one has posted a picture of a known hybrid that looks like this. And I found a picture of a Black-throated Green Warbler, which was banded on the East Coast as a HY female, that looks like this bird (accounting for differences in lighting).
mark Lundgren
15-Jun-2011 01:32
What specie might be the other half of the hybridiztion equation?