Happy Birthday

A bird was flying past a prairie
When he spotted a little berry
This bird loves berries very much
He would try to get it with some luck

But a dog spotted it too
And his greed for a berry grew
When the bird saw the dog and the dog the bird
The made growls and groans that have been never heard

Suddenly they both start a fight
Behind a tree I was watching the sight
While they were fighting I took the chance
And this was really a big advance
I took the berry and gave it to
The person that I love

which is ......you!