I still have an adult male hanging out in St Louis.
He is the only one I have seen for a few days. Last week I had a couple females or juveniles but have not seen them for 3 or 4 days. I haven't heard any chirping so he must not be arguing with any others.
He is only using the perky pet feeder and not the saucer feeders that were popular with the locals all summer so I am guessing he is a fly through.
Temps have been down in the 40's at night so it has been unseasonably cold here lately.