Urgh - don't they know a dragon when they see one?

Okay, small complaint about their Patronus quiz. I feel that, as the owner of several wyvern websites, I must point out that their image here is wrong.

I looked at the "see all possible results" and was caught by this one. Since when do wyvern's have four legs? Their picture is for a classic dragon, not a wyvern. A wyvern only has four limbs - two legs and two wings, although the wings may sometimes have a claw on them. We won't even get into the description of what the wyvern is all about. I'm guessing you get the wyvern by running down the puppies? ::::shaking head::::