I have five chicks- 3 are about the same age (a little over 3 weeks). One of my red cochin bantam chicks is so passive. S(he) doesn't fly up to the side of the nursery when I remove the top when all of the others do. S(he) really only "socializes" with the other red cochin bantam chick. She's content to just sit under the heat lamp mostly. Is this chick doomed? Does she just dance to a different drummer? Thoughts?