Reduce hummer stress: place feeders around your property out of sight of each other.
Hummingbird males (at least our broad-tailed hummingbird males) like sticks.
They like a vantage point to oversee their territory, to dominate all in sight. They terrorize any males that come into range (even if merely flying by) and hound any poor females stopping on a feeder to grab a rest and a bite (ok slurp.) These sticks are what they need in order to be mini masters of their domain.
So, don’t create a vantage stick? Don’t support this little megalomaniac? Maybe, but they’ll be little the same little bleeder anyway, just from a nearby branch or a bush.
If you put up the stick and attract them to it, at least you get some say in the matter. You can locate it such that he cannot see another feeder hidden around the corner of the house allowing those nesting females a break.
Literally within minutes of me putting this stick up we had a settler. He gave himself a good stretch and made himself at home.