Birds, landscapers during the week, lawnmowers and leaf blowers on the weekends (for those without landscapers), we get garbage pickup twice a week, bulky/vegetation once a week, recycling once a week. Cars, traffic helicopters (a mile from 3 different highways, I hear one now). Back in the day, jet planes from the 3 NYC area airports, but I think they changed flight patterns (I remember having to pause conversations). Most of us have dogs, so lots of barking every afternoon when the mail is delivered.