Here's a Fall quiz bird for you all.  I have my own guess plus an 
opinion from a member of the bird records committee, but be forewarned 
that there may not be a definitive answer.  All I have at the moment are 
these two photos:

http://www.uvm.edu/~ebuford/birds/CE_Fall_warbler.html

This bird hit a window in Bristol last week and was photographed by a 
friend of mine.  Which warbler is it, and why?  Give it a shot.

Enjoy,
Ernie Buford