This is it! Get your binoculars and hit the field! Clam to southerly winds produced the largest movement of birds thus far this fall over the Midwest and Ohio Valley:
Because it's relatively late in warbler migration, I doubt you'll find a lot of diversity. Wisconsin birders should look for Black-throated Green Warblers, Nashville, Tennessee, probably the first Orange-crowned Warblers, and of course, Palm and Yellow-rumped Warblers. Always be prepared for the stragglers, though. Naturally, White-throated and other sparrows should be on the increase soon. Bring on the Zonotrichia!