If you've read the excellent Kirtland's Warbler book by William Rapai, you will be familiar with the remarkable comeback story of this signature warbler of Michigan.
Like Pandas, Kirtland's are fussy breeders -- they need young jack pine habitat -- and lots of it -- to breed. Clearing of woodland and prevention of naturally occurring forest fires were both detrimental to their breeding success and populations were near extinction at 500 birds in the mid 1900's.
There are some other specialty birds in the nearby area as well -- Upland Sandpiper and brewer blackbirds.
Onward to Tawas Point -- a migrant trap that definitely deserves a visit in May. Getting a clear shot of a brown thrasher was definitely a highlight but there many warblers, vireos and tanagers as well.
Overall, a very productive field trip with the Kirtland's being the star.