Cock-a-doodle-do's is a fun and whimsical way to describe the crow of a rooster. However, there are a variety of synonyms that can be used to describe this same sound. Some options include "crowing," "cackling," "gobble," "clucking," or "squawking." Each of these words offers a unique way to describe the unmistakable sound made by a rooster, adding variety and color to our descriptions. Depending on the context of the writing, any of these words can be used to describe the sound of a rooster announcing the start of a new day.