I have delt with spraddle before, legs going out to the side and legs going to the front, but I have never seen this. The chick will stand for a second but when it tries to move it's legs go behind it. Then it will just lay there on its belly. I tried hobbles, did the same thing. I have it in a sling and its legs hobbled and feet touching so it can put weight on them. Is this just another form of spraddle leg? Also giving vitamin water