i finally think i found out what is going on;
its curled-toe paralysis, but all you have to do is help him get around a bit. you can repair the toes using tape and pipe cleaners. i recommend when he gets a little bigger, make him a small pool of warm-ish water that he can wade in. this will give...
unfortunately i could not find anything specifically like that, but he could be dehydrated.
you should probably wrap some tape around his toes to straighten them, and make sure to put marbles in the water so chicks dont drown.
he probably is very exhausted from hatching. if he moves around too...