Anything to be concerned about? One of my four hens has clear, watery droppings (I guess it qualifies as diarrhea?) today. Otherwise, acting perfectly normal -- not hunched or fluffed or lethargic, dug right in when I took them their daily offering of kitchen scraps. IF you think I should treat with something, which of these would you suggest -- Tetracycline, Amoxycillin, Cephalexin, or Flagyl (Metronidazole aka "Fishzole") -- those are the 4 antibiotics I have on hand.