As background on this little lady. She is from the suprise box from Cackle hatchery. I have looked vigorously for her breed but with disappointment. She is not thriving. The rest of her coop mates are atleast twice her size. She is always cold and doesnt move much.. she is about 13 weeks old currently. Everyone else is acting normal.. so question is.. what is she and how do i get her better?