I have a week old silkie chick. I just went upstairs to check on them to discover the rack I had across the brooder box had fallen inside the box and had pinned down a chick. It's not very heavy and did not fall from very far( it was across the top of the diaper box I used as a brooder) it's been a couple of hours since I found the chick but she has been chirping alot and I even here a constant clicking sound coming from her when I put my ear up to her body. She also will not put any weight on one leg. I cant tell if there is any damage to the leg because I this is my first year with chickens. Is there anything I should be checking for.