Hi! I just bought two ~5 month old hens from a woman on Craigslist. I live in Bend, OR (roughly 4000 ft elevation) and she lives in Yamhill, OR (roughly 180 ft elevation). I bought a Barnevelder and a Speckled Sussex. My brother in law was the one who actually picked up the hens and brought them over, so I don't really know much about the set up. It doesn't sound like they were overcrowded or that any of the flock looked sick, but who knows? He's not particularly observant in general, let alone when it comes to chickens. I put them both in quarantine and the Barnevelder looks great, she's energetic, curious, eating, drinking and preening just fine. However I immediately noticed that the Sussex was not ok. She just looked sick, ruffled up a bit, drooping wings, and her eyes are somewhat closed, and kind of dull or sleepy looking. She just stands there looking unhappy. I checked the carrier and found a dropping with some pink discharge and I immediately put them on a course of Corrid. I think the pink may actually have been intestinal lining, since it wasn't blood, but better safe then sorry, I figure. I also noticed that she has trouble swallowing the layer pellets we have, it just looks like they're too big. She's taken to digging through the feed to find little bits of corn and things and eating those. She kind of staggers, and her head kind of sags sometimes. Her legs just don't seem to work quite right, but the first two nights she went up and perched in the coop just fine. The third night I saw her just standing in the bottom of the run looking sorry for herself and when I put her on the perch in the coop she fell off. Second time she stabilized and was able to perch though. I've been giving them chick boost in their water, and the first day I ground up some food and mixed it with a raw egg. Yesterday I bought some Chicken Crack and she seemed to enjoy it, as well as oyster shell, though I don't know if she ate that. Today I half microwaved some eggs and mixed them with the Chicken Crack and oyster shell to make a porridge. She's been eating these specialty foods ok. When she drinks the takes ~5 dips in a row and then pulls back to swallow, but some drips out. The Barnevelder takes one dip, pulls back and doesn't leak. We found the biggest lice I have ever seen crawling around on her, but I didn't see any eggs on her feathers. They are really long and fat, and they've got tummies full of her obviously delicious blood. The Barnevelder did/does not have lice as far as we can see. We dusted her really well with Diatomaceous earth, along with her buddy, and the rest of our flock (turns out we have a lice problem of our own passed around by one of the roosters who does not bathe, at all! ) The lice on the rest of our flock are different. They are much smaller, flatter, and there are eggs on some of the chicken's feathers. They are "traditional" chicken lice, and I am fairly ashamed to have discovered them on my chickens. Though it's pretty much only on our bantams for some reason. Maybe the bantams are not so great at the regular dust bathing the other chickens love so much. So, today she has been preening ok, kind of looks like she's eating the lice when she finds them? However, she still looks pretty sick. I have been scaring myself with the prospect that it's marek's in which case it's now too late for all of my birds . She has no respiratory symptoms as far as I can tell. She makes no sounds at all, completely silent (she might let out a squawk when I grab her, but it isn't much if at all). No sneezing or coughing, breathing looks fine. There is no bullying from the Barnevelder, they get along really well. Could it be altitude sickness and/or stress? Is it just a really bad lice infestation (and stress too)? Vitamin deficiency? Some other type of disease? Is it Marek's? Is she just messed up internally and happened to survive 5 months? I have dogs and do not want to use pesticides of any kind (using Corrid already bothers me even though it's just a vitamin B fake-out), plus I sell the eggs to coworkers (though these two haven't started laying yet). Thanks in advance for any advice you can offer!