At Izaak Walton Wetlands in Olmsted County, about 10 AM this morning, John Hockema and I saw 7 kinds of warblers including one male Black-throated Blue Warbler. Others were: Common Yellowthroat, Chestnut-sided, Nashville, Tennessee, American Redstart and Palm. The Black-throated Blue was seen on the east side trail in the vicinity of the "Hardwood Forest" sign. Paul Pedersen