I'll start off by saying that I couldn't choose which part of that poem I like best.
It was all absolutely wonderful! The flow was perfect - I love it! The rhyme scheme - I'm sure many will think that it's repetitious and stupid, but I thought that it was superb...that's a good way to keep one idea firmly planted in the reader's head. The subject of the poem, whatever the nest represents kept dancing around in my brain. 'Tis a very lofty poem...short, sweet, and further to the point than many poets could reach.