There aren't many flowers in bloom yet in California. We have a feeder that holds about four cups of sugar water. It doesn't even last a week.
And right at dusk it is a traffic jam around it as they get their final sips
in before it is bedtime.

I have noticed that they don't seem to be too territorial at that time. It is almost as they all know these last sips are important.

However during the day it is constant dive bombing as one protects the feeder from the others.

The feeder hangs right out my kitchen window and I confess I have spent a lot of time just standing there watching them.