Animal Diversity Web | The rufous hummingbird (selasphorus rufus) consumes flies, ants, small beetles, tiny wasps, bees and other small insects for protein. Nectar is its most important food source for energy. It feeds on nectar from several different flowering plants, such as honeysuckle, scarlet sage, horsemint, and black locust; and plays an important role in pollinating at least 129 plant species. It also drinks sap for an extra food source when nectar is hard to find.
A way to get rid of wasps! Lemon with cloves or put out a saucer with cloves in it and wasps hate the scent. Also this works for kittens to stop climbing the christmas tree - all you have to do is poke cloves in to oranges and put them on the tree!
To keep wasps from setting up a home near your front door or around your home - mix 2-3 tablespoons of Dawn dishsoap and about 2-3 cups of water. Put into a spray bottle, shake and that's it. Spray where they keep coming back to, to make a new nest. This will also kill them and drop them like a hat.