Ya, BoldHighlander, they do sound like a little jack hammer.

And I've noticed, sydnie7, the woodpeckers like my palm trees,; they also seem to have very noisy calls. There's a whole bunch of birds out there, so it's been interesting trying to identify some of them just by their sounds.

Some of the hole boring birds like to drill holes in my spineless prickly pears: the taller cacti. It doesn't seem to hurt the cactus too much, just looks a little ugly, I guess.