Swarm of Hummingbirds

Have you ever seen 15-20 hummingbirds at one feeder at one time? Sunday May 2nd, one of my feeders was swarmed by that many hummers!!!! It was the most amazing sight, at one point 2 hummers were sipping out of the same spout! That was truly incredible. I sat at the window for over 15 minutes watching this, one of those rare events that don't happen often.