Hi, new here! I just got my first chicks a little over 2 week ago. I have a Buff Orpington and 2 Mottled Javas. My question is about one of my Javas. Today I've noticed that she seems to be sitting a lot. It looks like her legs are maybe weak? She'll be foraging around and then just sit. She still has energy and in fact will often continue pecking at things from her seated position. She also seem to be walking a little less erect than the other two. I'm a little worried about her, as she is also my 'runt'. She's been just a little smaller than the other two from day 1, and seems to maybe be falling further behind. The sitting issue just started today though. I'm thinking maybe it's a vitamin deficiency, so I just put the electrolytes with vitamins in their water. Any other ideas?