Rats end.

I am looking for a rodent that I can call a friend
One that I can live with until the bitter end.
My end is not bitter but who knows with a rat?
I never tasted rodent arse as I am not a cat.
A cat seems so majestic if not a little aloof
Waltzing around the area up on the neighbour’s roof.
Chasing poor old pigeons without a kind word
Perhaps I should change my view and buy instead a bird?