Not many hummers and fall migration

The hummingbirds haven't increased in numbers at my feeders at all. I do see different dominant birds out there. Last year it was mid-September before they really thickened up at the feeders.

Not too long ago, I heard Indigo Buntings in the weedy areas of the yard. Now that summer is over, I'll probably start heading down into the woods to see if I can find any fall migrants. The first warbler I saw on the property was in Sept. 2003 when a Canada Warbler popped out while I was in the woods. Fall migration can be just as productive as spring, but it can be more challenging. The females and juveniles can be very difficult to identify, as can males that have already molted into non-breeding plumage.