Fun, but... – Little Evolution World Review

I like this game. It's cute and fun, but there's one creature after bald chick that I cannot unlock. I've tried about ten times with different versions of the recipe shown, and every time I end up with long tall bird instead of the mystery one that I followed the recipe to unlock. No matter what ratio I use, it always evolves to long tall bird. Please fix this.
Review by Beast cardinals win !!!!!! on Little Evolution World.