I used to put up hummingbird feeders and loved to see the colourful flitterers hover in the air.The courtship dance is something to behold!The female sits on a nearby perch while the male hummer describes huge arcs in the air swooping up and down, up and down.One day I noticed ants in the sugar solution so I suspended the feeder so that no ant could reach it(or so I thought!).They were flying ants!I took all feeders down and now watch the hummers suck nectar from the flowers about the house.