The Snowman

Please let me introduce myself;
I am the snowman, fat and round,
Look through your window and I will be there,
As long as there's snow upon the ground.
The children did build me but now they have gone,
And I am left all alone,
The buttons have started to fall from my chest
And I think that I'm losing my nose.
But you will still find me as happy as ever,
Watching the world go by,
And I've got lots of friends who greet me each day
With a nod of the head and a smile.
My hat was once part of a proud uniform
But now it is covered in holes,
And the birds sit upon my shoulders and sing,
For they think that I am a scarecrow.
The sun has just appeared from behind the clouds
So I fear I must bid you farewell,
For as soon as it touches my skin with its warmth,
Then I, the snowman, shall melt.