Houston, this is billege: we have birds in the make up air duct:
<a href="http://www.flickr.com/photos/billege/143125797/" title="Photo Sharing"><img src="http://static.flickr.com/50/143125797_3493a6e7c6.jpg" width="500" height="375" alt="The birds are in there" /></a>
I can't say that's what they really look like, because they're just behind the 90-degree bend in the ductwork. But, I can see the nest just back there...
The duct must have lost its intake screen. One used to be there, and has since vacated. Obviously mommy bird noticed before I did.
So. What do you do with birds in the ductwork? They can't go anywhere really. The other end of that vent is in the utility/furnace room. I suppose, if they did go all the way down the vent they'd end up flying around a small closed room. I guess I'm not too worried about that. They seem happy flying in and out the vent 24 inches from thier nest.
Sources say they're either house sparrows or some other silly bird (do I really care what they are?), and will bail after about 3 weeks when the babies can fly. My wife and I think, after much consideration, they get a 3 week stay of execution.
After that....I bet I could hook the shop vac up to the other end and put some positive pressure in there...FWHOOOOOSHHHH *cheapcheapcheap*
I guess I'm looking for bird removal ideas; assuming they don't vacate on thier own.
No, I'm not looking to kill them.