Hello, I'm a new chicken owner and new to this site - I have 8 pullets all between 3/5 to 5 mos old. I have a little barred rock pullet about 3-4 mos old. She was doing just fine until this afternoon, I noticed her just sitting on the outside roost. I began watching her when I threw in some greens for the chickies, and she didn't offer to come down from her roost. I tried to go touch her and she jumped down and walked around slowly but didn't eat or drink. She's raising her head and stretching her neck out and looks like she's taking a breath, then her head goes back down. Later on this evening, I went back into the coop and easily picked her up. She feels light and boney and maybe she's dehydrated. Not sure. She didn't even try to get away - just layed in my arm. I offered her drink and food and she wouldn't take either one. I'm afraid she's sick. I have no idea about her poop color. She does not have pasty butt - I checked. I felt her crop, too, and its empty, which leads me to think she hasn't drank or eaten today. Could she have an infection or worms? What should I do? Should I get her antibiotics tomorrow a.m. if she's still alive? Anything you guys could help me with would be super! I hate to lose this little barred rock - she's my favorite.