When I was a child, I read most all the books available about horses. I would keep my eye on the stallion who barely ate or drank himself. He was the protector of the herd. The wild herds amazed me as I was able to believe my own mind that urged them forward and on to safety.
Yes I agree a bird would be nice too. Although my current preference is Human. I'll let them be free for me to watch another day.

probably a dead horse somewhere out in a green field..

A tigress. I would be sleek and powerful and be protected by the king of the jungle.

Clouded leopard so I could spend all day in a tree

A Honey Badger. They just don't give a shit.

Elephant/Horse/Cheetah

Liger just because they are so cool

An eagle. An elephant. A whale. 😊

Unicorn, narwhal or cat😌