I have finally figured out what they sound like when they are chattering. Now that I know what to listen to, it is amazing how vocal the hummingbirds are.They rarely shut up. They are always calling my mother bad names, and criticizing the work that I am doing in the yard. Then there are the times that they think that maybe they are going to like something different in the feeder, even though I know that they won't like anything else.
I am still leery of them after being hit upside the head, but I don't think that I could ever give up trying to care for them. They are such amazingly cranky little birds. Maybe it's a good thing that I am just to scared of them to quit feeding them.