A cock crowed far off and another replied near by.
One nervous old woman touched the trivet and the cock crowed.
The donkey brayed, the hound barked, the cat mewed, and the rooster crowed.
He was detected and accused of being a disciple, which he denied, and so fulfilled the prophecy of Jesus that he would deny Him before the cock crowed.
But Jesus said that before the rooster crowed at the first morning light, Peter will have denied him three times.