Festal Cockcrow

Some say, that ever 'gainst that season comes
Wherein our Saviour's birth is celebrated,
This bird of dawning singeth all night long:
And then, they say, no spirit can walk abroad;
The nights are wholesome; then no planets strike,
No fairy takes, nor witch hath power to charm,
So hallowed and so gracious is the time.

                                      William Shakespeare