I saw tears in a bird's eyes!

What are we doing to the world guys?
Today I saw tears in a bird's eyes!

The trees, the branches, where he builds his home,
Are taken away for our woodden stools and throne,
The food he needs, we won't let him eat,
With sprays and meds, we protect our wheat.
They only place he really felt safe, the air,
We took over that too, as we didn't care,
With no place to live, no where to go,
With to nothing eat, why ain't I surprised at his sorrow?

What are we doing to this world, my friend?
Are this bird's tears representing the end?