2 1/2 week old BO purchased from TS is very lethargic. I separated her from her 9 sisters who are fine and active. Tired baby has no other symptoms, just sleeps and is so tired when she does try to walk that she appears disoriented. I dipped her beak in water but she does not drink. Breathing seems a bit quick and labored. When I hold her she tucks her beak into my hand and falls asleep. As I said, I separated her, but does she really need to be quarantined? BTW, I have been a member of BYC for 7 years but just got chickens!!!! Thanks so much for suggestions!