Teacher:Boys,I have a ruddle for you.It has a beautiful feather,and it can wake you up every morning.What is it,Tom?

• （中文翻译：老师：“男孩们，我有一个谜语给你们猜：它有漂亮的羽毛，并且它可以在每天早上叫醒你。它是什么，汤姆？”