Even without a rooster, you will still have some noisy squawking in the backyard. My neighbors are great about it, but they mention it every now and then, which results in a fresh egg delivery to their door a.s.a.p. My 3 grrrllzzz pitch quite a fuss early in the morning, if their feeder or water is empty, and when a neighborhood cat strolls by the fence. Otherwise, they're quiet for the remainder of the day. My point is, don't think you can keep your flock to yourself. Your neighbors will know, so respond to that when it happens.