I'm looking for a poem I read as a child. I think it may have been written by William Blake or may Keats, but I am probably wrong. There is a great couplet about a bird (a robin maybe, or sparrow) and the bird's perserverance. Unfortunately, that's all I can remember....it was a wonderful poem and any help you could provide would be greatly appreciated.
PS. I know I didn't give you much info to go on, but its all I could remember.