Hi there, the hummingbirds were swarming our yard a couple weeks ago, I have 4 feeders and all of them were inundated with the little beauties. I managed to catch a video of them at one of the feeders, and thought maybe you all would like to see!
By the way, the feeder in the video was filled that morning, and empty by night, we had to refill it 4 days in a row. Now most of the birds have moved on, so we only 2 or 3 now and again.
When I took the video it was cold, raining and there was nothing blooming, so there was no other food out there!
Here is a link that might be useful: Hummingbird Picnic