15 Feeders, Hummers, and a Nuthatch
Here's a video of activity around my feeders. This goes on all day, dawn to dusk. At dusk, there's a cloud of hummers surrounding the feeders. My wife says there has to be at least 200, I say it's more like 100, the true number is probably somewhere in between our guesstimations. They're using 2 gallons of 3:1 mix each day.
The noise in the background is a friendly and comical Nuthatch.
Here is a link that might be useful: Video