Didn't whitestone gargoyle originally had this as a race or second race. They probably removed it when they realized they weren't going to do anything with that race as a theme. Or maybe Sok got rid of it when he was doing that race consolidation a few years ago. Race bird is still on the list of races as well and they don't exist anymore. Apparently they did remember to get rid of race serpent and bat though. Prob just an oversight.
Well, I just made note of this so in due time they will likely go away or not. Regardless, we are now aware of their existence.