Hello, can you give me some advice with my 4 week old Welsummer pullet chick? I adopted a few day old chik 4 weeks ago. Although the chick is eating and drinking she is not growing. She has only grown slightly and still looks like a new born. She does not look like any of the pictures for a 1 month only chick. She is our first Welsummer. Can you give us any advice?? Thank you.