Hi! Welcome to BYC!
I hatch a lot, and get one like that every so often. I had two a couple of weeks ago, ironically from the same chocolate hen. I held them back (sold the rest). I mixed raw egg yolk with some drops of NutriDrench in it and fed them both some of this by holding the needless syringe to their right side of their beak. One wound up lunging toward it the second time I did it and drank from it straight on. I did that a few times a day for two days. I gave them their own brooder, made them mash, and put a little NutriDrench in their water. They did what yours did, as far as seeming tippy, not sure on their feet.
I think they are potential FTT chicks (failure to thrive), except we try.
It is now two weeks later, and I put them with the chicks that hatched yesterday. Oddly, they're very close to the same size, but now, they are the leaders there, in eating the mash, drinking the water, etc. By all accounts, they are fine.
