I bought 47 chicks from mt healthy and all have been great and very happy. This morning I checked on them and one of my barred rocks was acting very strange. He/she was ok yesterday and this morning the chick was in the corner of the coop not moving so I picked it up and it was acting very strange and is unable to raise it's head up straight. When I try picking it up it will tuck it's head in between it's legs and walk backwards. I just don't know what may be causing him to act this way. Can this chick be blind? It can see my hand at close distance and his eyes aren't cloudy or anything. They are all 4 weeks old, could he of hit his head and made him be like this?