Should I be worried? I noticed Saturday that she was sleeping w/her head tucked under her wing. She didnt move when I was sweeping, which is odd. I touched her & she woke up and walked off. She did eat & drink some while I was there. Sunday she was acting tired & sleeping alot while we were in the coop. Her head feathers looked a bit ruffled than her sistes...this was not normal. Last night she was still sleeping alot. Today she was dead.