'Cock's' in the Bible

So you are to keep watch: because you are not certain when the master of the house is coming, in the evening, or in the middle of the night, or at the cock's cry, or in the morning;

And Jesus said to him, Truly, I say to you that you, today, even this night, before the cock's second cry, will say three times that you have no knowledge of me.

And in the same minute, the cock gave a second cry. And it came to Peter's mind how Jesus had said to him, Before the cock's second cry, you will say three times that you have no knowledge of me. And at this thought he was overcome with weeping.