We have a lot of green parakeets round here and I love them as they make me laugh. But they've got into an air vent in the building and have had a (several, by the sound of it) happy event. We can hear loud squeaking and chirping and wing flapping just the other side of the wall near our sofa.
If I report it to the building boss, the pest control will be round and they'll seal the vent with wire and we will hear the babies starving to death, which would be unbearable. I want to wait until they've all flown off, then report it so they don't come back for another nest.
I know they can be destructive of any cables or pipes (don't know what, if anything, is in the space) - the birdies have opened a flap to get in - and it's really high off the ground so possibly only a scaffold can reach it!
Assume there is no real health risk? I get a bit neurotic as OH can't take antibiotics as had C Diff a year ago. They are below or at our floor height, behind the wall. Can't see them.