A DC Birding Blog has some interesting observations on the reports of birders not seeing as many hummingbirds this summer. Meanwhile, Mr. Neil's yard seems to be experiencing more hummingbirds than usual. There are two feeders out this year and both get regular traffic. There are at least four separate hummers, two males and two females. One male in particular goes right into display mode when a female shows up.
They're totally digging the sundae feeder. Above, a female ruby-throated hummingbird is sipping from the feeder.