Hummingbirds on the Increase

Yesterday afternoon I watched my feeders for about fifteen minutes and counted at least five hummingbirds around them. I'll probably get one of my large feeders out this weekend and put it up. They always seem increase dramatically in numbers after I get one of those feeders up. As of yesterday, the dominant bird was a male. I saw several females and/or juveniles flying around, but he was not allowing them to drink very long. I wonder what affect the wet summer will have on the hummingbird numbers. Last year when it was pretty dry, they arrived really late and didn't stay that long.