I went to the Quests page, and this caught my eye. A quest called for a black, bicolor Gryphon.

Alright, I could be wrong on this, but I am almost certain there is no such thing as a black bicolor Gryphon, especially after I looked at the List of Skins. There is a black bicolor Roc, but certainly not Gryphon, right? Here is a screenshot of the quest.

This is a Black Bicolor Gryphon:

Wow, can't believe I missed that. I was looking at the "Black Pigeon" label rather than the one right below the actual picture. Thanks!