Unless you are specifically trying to add a Kirtland's Warbler to your North American list, it's probably easier bag one in Nassau in the Bahamas where they winter. We've tried (and not succeeded) to find one in Nassau a couple of times. There are Bahamaian folks on Birding Pal who can help you.
In any case, Nassau is a lot more fun than Grayling, MI. :>)
Larry and Mona