Henrietta is just one year old. She is one of six chickens we have; got them all at the same time. She lost feathers on her chest 6 months ago. Now she is dull-colored, and her comb is pale and bent over. And she is SKINNY! Her poop looks normal, but we had it tested and it is negative for any parasites. She is acting completely normal.....foraging, eating, drinking, and running. Our other five chickens have no issues. She is not broody, and she does not act sick at all. Our chicks have DE in their run, and we gave them a dust bath a week ago. Does anyone have any idea what is wrong with her?View attachment 33183 View attachment 33184