For the past week, I've been hearing birds in the bathroom vent. It's really annoying. I called someone to clean out the vent and put a birdguard outside, but he said that the birds have to grow first until they are able to fly off on their own which can take up to two weeks. In the meantime, the bathroom is starting to smell pretty bad. Hopefully, there isn't a dead bird up there. That would really suck. What can I do about the smell? Can it be hazardous to my health?