Ash Harper

Thanks! my main concern was mareks I know that is still a possibility. I may end up having her euthanized and sent for testing.
If it were mareks wouldn't some of the other 14 developing symptoms as well?

I hatched a lavender orpington in May of this year. She was stuck in the egg and required assistance, she was weak for about a week after hatching, but she seemed well after that.
Around 12 weeks I noticed she wasn't moving around quite right, and it seems she's stopped preening.
If she pecks at the ground she falls over, if she changes direction she'll drop a wing for support, her comb is purplish and she has developed what I only know as angel wing on both sides. She's now 16 weeks old, has lived with the same flock since hatching(all hatched the same weekend) and they all free range.
Anyone know what could be wrong with her?

You could try putting a small light inside the coop. The light should draw them inside.

I can't speak from experience yet but I'll tell you what my plan is and maybe it will give you some ideas.
I'm planning to make tractors similar to what you'd make for chickens so I can move the rabbits around and they wont over graze one area. I figure this will reduce loss to overhead predation and they will be less likely to dig if they're moved every day or twice a day. You can also give them a good deal of shade with this method by building the tractors with a solid roof.

Has anyone heard of a tularemia infection in pastured domestic rabbits?