I mounted my very first hummingbird feeder in mid-July. A dominant male hummingbird promptly conquered the feeder, disallowing any females to sup unless they mated with him. (Hmm, sounds familiar.) Eventually, one female succumbed to his coercing like a coquette at a cocktail bar.
On Labor Day, I was told by 2 avid mountain gardeners, that I needed to take down the feeder or the hummingbirds will not migrate. I was thinking the birds would fly south instinctively, but apparently a maintained feeder sends the wrong message. With winter around the corner, I imagined ice-covered hummingbirds with beaks frozen in nectar. Not pretty.
So, yesterday, I removed the feeder. At first, the hummingbirds flitted circles around the vacancy. Then they vanished. The wasps, on the other hand, were obviously in denial. It took them hours to accept that the party was over.
NOTE: See "And now I wait..." for my previous hummingbird post.