From The Book Of Virtues:Kindness to Animals

Little children, never give
Pain to things that feel and live;
Let the gentle robin come
For the crumbs you save at home;
As his meat you throw along
He'll repay you with a song.
Never hurt the timid hare
Peeping from her green grass lair,
Let her come and sport and play
On the lawn at close of day.
The little lark goes soaring high
To the bright windows of the sky,
Singing as if 'twere always spring,
And fluttering on an untired wing -
Oh! Let him sing his song,
Nor do these gentle creatures wrong.

From The Book of Virtues, Edited by William Bennett (Simon and Schuster)