Wisconsin is the host to 42 species of these highly active and colorful birds. Personally, I have only seen 24 of these species. They spread across the state in a wide range of habitats with a majority of them taking a liking to dense woodlands. Finding them is not easy.
If found, photographing them can be a nightmare. They flit from tree to tree, branch to branch-always in motion..... It goes something like this: See bird. Focus in. Snap picture. Get a wing. Try again. Get a blur. Try again, miss it completely and get branches. Try again, bird gone. Pull hair out and cuss. Repeat process until you get lucky.
However, I have gotten lucky... The top picture is a Yellow Rumped Warbler taken at Shoop Park on 5/13/2013. The first one below is a Common Yellowthroat taken at Shoop Park on 5/17/2013. The next one down is a Yellow Warbler taken on Carver School near East Troy on 5/11/2013. The bottom one is a Black Throated Green Warbler taken at Grant Park in South Milwaukee on 4/30/2013.
If you wish, NOW is the time to see them! That is, BEFORE the leaves finish covering up trees, making them really difficult to see. One of the state's hotspots is Racine's very own Colonial Park, located on West High Street by the Root River. Presently, the Hoy Audubon Society is having warbler walks at Colonial Park on Wednesday nights at 5:30 during the month of May. That's were I have seen most of my warblers. I'll leave you with a picture of a Palm Warbler taken at the "Ponds" Subdivision in Caledonia on 4/23/2013.