Here is a list to contemplate. It is also a riddle.

I'm a blank image because this stupid WP layout is stupid and makes an ugly forced image if I'm not here

Tortoise
Greyhound
Starlings
Kuvasz
Chicken
Corvid
Wirehaired Daschund
Maine Coon
Goat (small)
Miniature Donkey
Lemmings
Rosy Boa
Horny Toad
One Eyed Cat