Unknown Warbler - Ontario, Canada (1 Viewer)

[Guinness537]

I have absolutely no idea what kind of bird this is, other than its most likely a Warbler of some kind(I think ).

He/She was forgaging with a group of Black-Capped Chickadees when I noticed him whacking a caterpillar against the tree branch.

I've tried to identify this little guy, but I've come up empty. Any help would be appreciated in identifying this bird.

Thanks,
B

 

[fugl]

Red-eyed Vireo

 

[Peter C.]

Bingo.

 

[mrmanning]

It is. Note the black stripe going through the eye.