Who wrote it?

The most triumphant Bird I ever knew or met
Embarked upon a twig today

And till Dominion set
I famish to behold so eminent a sight
And sang for nothing scrutable
But intimate Delight.
Retired, and resumed his transitive Estate --
To what delicious Accident
Does finest Glory fit!

(Hetay irstfay ersonpay howay ayssay ickinsonday illway ebay ightray.)