Last lousy photo where pixels are really over exposed that somewhat shows what appears to be an overall yellowish-olive on the bird but no wing bars with my camera never picking up on them in any of my photos.
Obviously this bird would turn out to be a scope bird as we couldn't get it to sing (though we did try the calls of Least, Yellow-bellied and Acadian) to see if it would respond and it wouldn't as that would have cinched the ID. There'd be four of us on the bird and lighting so poor and the bird would drop down to eat here and there and then reappear only twice more so we never got the looks we would have liked, especially with the sun. Two of us saw what we thought appeared to be a yellowish wash on the birds throat and two of us wouldn't so with the inconclusive field mark, we brushed it aside as it could have been the sun. With that said, the flycatcher would have to go as unidentifiable but do think it could be narrowed down to either Least Flycatcher or Yellow-bellied due to the size of the bird. The vest that all of us noticed is very interesting though and think the shadow of the bird due to the sun's position made it more pronounced than it really was. The only two flycatchers with a vest like appearance (besides Olive-sided) that I've read were the Acadian and Yellow-bellied and as you can see this bird is far to small and pudgy to fit the Acadian bill (pun intended). Yes it kills me to have a bird un identified but don't want any "dirty birds" on my list this year as I figure I'm in year five of birding so hold myself to higher standards as I should know better. If you can't positively ID a bird, than don't. Hard medicine to swallow when one wants a Yellow-bellied but look on the bright side as I spent most of yesterday reading all I can between the flycatchers so watch out next time!
Take care all.