I still say it's a redstart. NO vireo has a white eye ring only like this and the beak is wrong for most vireos too. If you look at these links you'll see

http://www.hiltonpond.org/images/Red...icanJuvF02.jpg (small image though)

the fall warblers we mostly get
http://www.hiltonpond.org/BandingParulinaeMain.html