its called spraddle leg and its caused from slippery floor. it can be corrected with a hobble/brace, the sooner the better. there are alot of options but i have found a bandaid cut lenth wise is the easyst to handle. be careful around the water too. u can put some stones in water to prevent drowning and the most important thing is, dont feel sorry for them and take it off, u are helping. google splay or spraddle legs in chickens to see how to put it on.