Cock crowing cock a doodle do.

According to popular belief, cocks crow only at daybreak to wake farmers and other people who need to be up early in the morning. However, this is not entirely true.
While cock crowing usually begins in the early hours of the morning, it often continues throughout the day. Apparently the reason for this has nothing to do with a “functioning feathered alarm clock”. In fact, the high-pitched ululation serves as a warning to other cocks to attract female chickens, and as a general warning signal.