Ive only actually seen one group of hummingbirds in my life. They are so small I thought they were large bugs until my late wife had me look close.
There are a lot of Robins here now and they seem to be the Crowing Roosters for the rest of the birds. Their concert starts about an hour before sunrise and can reach a very loud level. Fortunately Im an early riser.
The most amazing experience I ever had with the hummingbirds was at my daughter's camp that she went to every summer. They had a bunch of feeders....and LOTS of hummingbirds. If you went out by the feeders when they were feeding and stood very still with a finger extended near the feeder, invariably, one would light on your finger. That was one of those memorable, once in a lifetime type experiences.