I went cycling/birding this morning and afternoon around the eastern end of the lake, south along a county road through rich hardwood stands, flooded meadows, limestone barrens and old farms.
Among the known breeding birds on this route are Cerulean, Blue-winged and Golden-winged Warblers. A pulse of additional northbound warblers at this point in May allows the possibility of seeing 20+ species of warbler. Alas, this wasn't to be. If I count the species I hear around our home (Pine, Yellow-rumped and Northern Waterthrush), I ended up with only 15 species. Few were singing. The highlights were three male Golden-winged and one male Blue-winged Warbler, all in spots where we'd seen these species before.
Other additions to the year list were Sandhill Crane, Killdeer, Red-headed Woodpecker, Warbling and Philadelphia Vireos, Magnolia and Black-throated Blue Warblers, Eastern Towhee, Sandhill Crane and Red-headed Woodpecker.