They say that our Flicker numbers are decreasing, but we have tons of them around here. A couple of years ago, we had two young dumb ones decided to plunge down our chimney, and it was tough catching them and putting them outside. Sharp beaks.
I heard one calling this morning. "Flicka flicka flicka." They migrate, unlike most woodpeckers, but these guys do more pecking in the earth than they do in trees. They love to eat ants, and suburbia doesn't seem to bother them.
You can read more about these birds here.