I hope it's okay I posted also in Raising Baby Chicks. I've seen a bunch of posts about chicks that have just hatched not walking properly. But I have some older ones that used to walk just fine, but now seem to be struggling. They are blrw's. They make it to food and water ok, but it seems like their legs are just really weak and wobbly - they are definitely not walking correctly anymore, as they used to. I did have them in a room where they got very minimal natural light for the last 2-3 weeks. I had them under a heat lamp when first born, but then it got too hot so I left them without the light. But there was very little natural light coming into the room. Is vitamin d deficiency something I should consider? I have moved them outside to a place where they can get a little natural light on Saturday, so no noticeable improvement yet, I just want to make sure I'm doing what I can for them. Any advice, anecdotes or recommendations would be appreciated!