If the embedded video doesn't work you can see it here.
I can't even count the number of birds buzzing around. They sit on the perches, sometimes two at a time, while other birds dive in and poke around trying to angle in for a sip, other birds buzz in and around trying to push others off the perches. It's just crazy.
This is one of three feeders that I have around the garden. I have to refill this one every day, usually at the end of the day so the birds can enjoy their bed time snack. Another less crazy feeding frenzy starts at first light and the feeder is usually empty before noon. The other two feeders are more zealously guarded by other hummers, one of them takes about two days to be emptied and the other feeder only gets half filled and takes about 4 or 5 days to be emptied.
Summer is high time for hummers in my garden, come winter the population decreases, for a number of reasons I suppose but I really can't say why.