I don't know if this is common or not, but while at my currently under construction house, a bird came through an open window (actually no glass around the front door). Anyway, there was one vent that was covered by sheetrock, and that was opened up on Friday, but without putting a grate on it. Anyway, the bird flew into the Duct!!!!! I sat for a while waiting to see if it would come out, but it never did. What should I do? What is reasonable for me to ask from my builder? Should I make them put a camera up there, or do I just wait to see if it starts to stink? Any ideas would be greatly appreciated.