It’s funny cause Wilson being a Harpy is like. An AU in an AU. For Max, it was a long process of being slowly changed on the throne.

With the normal Harpy Max AU, Wilson wasn’t on the throne long enough to become a bird.

But in this AU, it is much more immediate and Wilson gets morphed rather painfully into a birb before Charlie frees him and tosses him back into the constant where he meets up with Harpy Max.