The parents take out the fecal sacs every few feedings. Those babies poop a lot. I just thought this photo was too funny--it's like "Lady, do you have to make it so trashy? First the house, now this. Harrrumph." I'm putting in EOTB10 because this is really one wreck of a trailer park bird house, but it's just beautiful, even if I'm capturing it exactly at the moment the poop is being taken out. :)