Long story short went out of town for a week for work my chicken sitter had a death in the family didnt care for my flock I come home to five of my babies dead the rest of the flock is doing really bad combs almost all gone very lethargic wings droopy and thier feathers above thier tail feathers are gone on some of them i've watered and fed them they are not drinking its fifteen degrees outside i have thier heat lamp on in the coop and they are being extremely mean pecking each other and pecking at me which they have NEVER done what else can I do for them? My best guess is they have not had food or water for four days. .