Creatures of Fantalia

There are many animals that appear in fanmade Hetalia works This article includes information about the characters' pets and other animals that appear in art, writing, etc

Mitzi
Mitzi is a stray cat that is taken in by Israel's younger sister, Akhzivland  Though Israel detests, the cat only drops by once in a while for food and drink   Its name, Mitzi, is the default Hebrew name for a cat, as "Sparky" is for a dog in English countries

Pwca
Pwca is a flying mouse-dragon hybrid belonging to Hay-On-Wye. In the first Hay-On-Wye chapter of "The Daily Life of a Micronaion," he is seen pestering Hay. He tends to prefer Welsh, and calls his owner by her Welsh name, "Y Gelli Grandyl." Hay thinks he is an actual Pwca, an evil creature in some animal-form, but he's just a random dragon-mouse thing. Like flying mint bunny, he is usually unseen by others, except Frestonia, who has seen him once or twice and thought it an illusion. Pwca supposedly represents Hay's Welsh side; because he is a mouse and mouses supposedly like cheese and cheese is a Welsh thing, he links to Wales. (Dragons are also a part of Welsh tales.)