Nifflers are fluffy with long snouts and enjoy looking for shiny things. Goblins often use them when hunting for treasure.
It's a bad idea to keep them inside your house though (who knows what they might go hunting for). They're more comfortable living about twenty feet below ground.
These creatures look just like pigs and make a habit of sneaking into barns and pretending to be regular little piglets. The longer they hang around, the worse things are for the farm.
Luckily, they can be chased off by a pure white dog. Where's an albino bloodhound when you need it?
Nundu
This gigantic beast looks a bit like a leopard…and you'll want to steer clear because its breath really packs a punch. It can breath deadly disease onto entire villages.
It will take a few hundred wizards working together to get this beast under control. Good luck, friends.