Question

"The birds are chirping at the edge of the woods" Is it a proverb or just a simple sentence?

Answer 1

This is just a sentence. You could add some meaning behind it, and make it a proverb yourself, but it really is just a sentence. Good luck!

Answer 2

Just a simple sentence. A proverb would be something wise that you could live by. 

Be happy. Make sounds like birds chirping at the edge of  a forest.

Be happy. The singing birds by the edge of the forest never sing of the troubling things in their lives.