Dirty bird

Here is one of the birds (yes, again, heh) in front of my house rubbing dry dirt on itself. It was raining that day and this area was covered from the rain. There were several dozen of this type of bird, they were fighting over the area and sometimes taking turns doing this. I'm not sure if they were drying themselves or what, but sadly this is the best angle i could get of them doing it without scaring them away.