I picked Mocha up just before dawn, and examined her thoroughly. Also Pepper for comparison. I found no indications of external parasites, Mocha's keel (and all over) felt like it had about the same fat cover as Pepper's. Their abdomins felt about the same. Neither liked any of it but Mocha...
Wow, 30% or more of hens develop reproductive tract cancer by the time they are 2.5 years old. From poultry dvm dot com. They say there is no treatment for that either.
Oh, no cure. Various treatments.
Hm, other sites say cancer is rare.
For several weeks, I didn't know which hen was laying them. I've become quite sure it is Mocha because she has accumulated a lot of white residue under her vent. She and one other have often had a few traces of poop (I thought, anyway) on their fluff but her's went from about that when I found...
1) What type of bird , age and weight (does the chicken seem or feel lighter or thinner than the others.) Mocha is a Black Australorp, hatched May 5, 2021
2) What is the behavior, exactly. She seems to be acting normally, for her. She has always been the bottom of the pecking order in a flock...