My buff orpington, who I'mguessing is about 18-20 weeks old, doesn't want to go inside at night, but wants to lay in the grass by the garage. I've sat with her, waiting for her to decide it's time, but I end up carrying her in. She is often off by herself and doesn't seem to notice that the rest have left her behind. She doesn't even get bothered by the others screaching and carrying on. She just seems oblivious. No one is mean to her. She's always been very friendly and my favorite to hold and pet. I worry that she lacks normal chicken instincts. Shouldn't she be with the flock while free ranging? If only we could be as carefree as she is... She reminds me of a hippie chick.. maybe under the influence of something... perhaps I'll change her name from sunshine to hippie chick. But then I may come home to find her living in my camper and having tattoos.