I need some advice please, I have 5 chicks, 1 Rhode Island which I hatched and 4 others which I got from a local poultry farm to keep her company! One of these is enormous!! He is easily 3 times the size of the others and gets worn out if he walks too far...he would much prefer to lay by his food bowl!! He is also getting a dirty tum because he isn't cleaning himself. What should I do with him?....Diet?!!!! I'm so worried about him!