There's no way this hasn't been done before.

Have a Vulpibri, everyone.

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This little guy is an elusive creature that can only be found in the Boreal Forests in the far north. The specimen shown here displays its summer coat - by winter it will have been replaced with a fluffier, white-dominated coat of fur and feathers that greatly help in maintaining stealth.

The Vulpibri survives on a diet of large insects, such as summer grubs, spiders and beetles, as well as small rodents, which it hunts much in the way of our snow foxes. They vary between the size of a large sparrow and a small hawk, with the larger variant being the more common (or at least the more often observed).

They are skittish, difficult to see and generally avoid humans, but they can be caught and, once properly tamed by an expert handler, make for spectacular and loyal companions.