Hi. I hope someone can help, I haven't been able to find an answer for this. Birds have built a nest on the window ledge right next to my window air conditioning unit. I can't see if there are any eggs inside, but there are two birds there all the time -- calling out and flying about. It's getting hot here and I'd like to turn the unit on, but I'm afraid of hurting the birds, the nest, the eggs, and eventually the baby birds. Does anyone know if the sound and/or heat of the a.c. unit will hurt them? If so, I won't turn it on. (Does anyone know how long it takes for eggs to hatch and then baby birds to leave -- when might I be able to turn it on?) Thanks so much for any help -- I don't want to do anything to hurt the birds.