this is my neighbors 6 month old buff orphington. four weeks ago while i was chicken sitting i noticed one of the buffs was lethargic (flock of 17). i brought her to my house and put her in a rabbit hutch for observation. while she was walking around my laundry room floor she pooped out a round worm. i treated her with wazine (and the whole flock) and then ivermectin pour on a two weeks later. she still was not improving. my flock had coccidiosis running through it so i treated her with corid last week just in case. still no improvement. my neighbor wants to cull but i have decided to keep trying. i named her mary. her signs and symptoms include diarrhea (water like with bits of feed in it), lethargy, being puffed up, and a pale comb and waddles (almost white). she is losing weight (about a half pound over the month) but she is still eating and drinking (chick starter and vitamins in her water). the only thing i can add to this is one of my neighbors birds died from mareks (month ago and i had an autopsy done to confirm). mary is vaccinated but i know this really does not matter. any thought?