David Mitchell - The Red Squirrel

I do not think I ever saw
A squirrel red before:
I do not think that I shall see
Another evermore.

I only saw that fair rare sight
Briefly, but I'll not let
My memory that creature fair
At any time forget.

It was a creature surely never
Equalled in its fairness;
The sight was made more precious, still,
Because of its great rareness.

David Mitchell

http://www.poemhunter.com/poem/the-red-squirrel/