We still have hummingbirds coming to feed. I'm not sure what stage of their migration that they are in. I saw 5 yesterday at early light. The wasps are coming around, too. The hummers won't drink if there is a bee there so they fly off and try again later.
The bee's technique is different from the hummingbirds. They immerse half of their body into the drinking hole and stay in that position and drink what seems like hours. Too much of a good thing can be dangerous for the bees. When I clean the feeders, bee parts will also pour out with the last bit of sugar water. I don't know if they drown or get inebriated.