I have a young BCW polish cockerel of about 4 months that's been getting picked on by the other chickens and has started to develop a wobbly gait and seems to be weak in the legs. He seems otherwise fine and will eat and drink, I haven't tried him on vitamins or wormers yet. He was bought from a hatchery (as a pullet, but I guess a few boys slip through) and was supposedly vaccinated, so I'm hoping it's just that he's low man on the pecking order and not getting enough nutrients. Any other thoughts or am I on the right track with giving him some vitamins and wormer and seeing how he does? All the others in his group and our older group seem to be doing fine.