I have 2 isa browns (Ginger and Three), 4 australorps and 2 khaki campbells in an outside run (rather large but fenced in). The two isa browns are at the bottom of the pecking order, and suffer because of it. The have both recently lots a lot of weight and condition, but I cannot identify the cause (sorry if the pics are gross). The four black chooks have some breast feather loss and the occasional red patch, but otherwise seem healthy. The worst of the black chooks Three is the bottom of the pecking order, and is very timid Also has a very pasty butt Recent feather loss near crop, and wings are very scraggly. One of the red patches, now looking at Ginger All chickens have healthy red crops and combs. I really don't know what is the matter with them. We have ordered both worm pills and mite dust, which are on their way. N.B. Both ducks are in fine health, and we have been having days of 30*C (86*F), but they have a pond and fresh water. Please help!