Your flying flowers are all down here! We've had more here (Coastal Bend of Texas) this year than ever before, and you can see some of the action at our feeders at my YouTube channel (kcallander989).
They're still here, but only about 20 at a time now, instead of the 30-40 we were seeing. I'm pretty sure these are new to town, since they're much more combative than the others. And there are far fewer males now than there were.
We've seen Ruby Throated, Buff Bellied and Black Chinned. We will likely leave our feeders out all year, as we've been told there are a few pairs that stay here during the winter.