Hello all, new here and new to chickens as I was born a "city kid." Fast forward 20 years and now living in the country with my husband and our chickens. When we bought our farm about 8 months ago, mother in law gave us two hens as a gift to our farm. One was a dark Brahman and the other is a buff Orpington. We have since added 8 "rare color Orpingtons" because I have fallen in love with Orpingtons. (4 Delaware, 2 lavender Cuckoo, 1 mottled, and 1 chocolate Cuckoo).. The original hens are a year now and my other Orpingtons are about 10-12 weeks old. They are cage free, free ranged all day, and return to their coops at nightfall. About 3 weeks ago I noticed 1 Delaware hen named Opal was acting a bit friendly. She would hang around the barn and come up to say hi whenever I came out to check on them. Usually they were a bit skidding. I attributed it to her personality and dismissed any illnesses as she was happily running about, eating, etc. As the weeks went on I noticed she started to hang me around more and more and less with the other chickens. Finally I noticed she was just walking about slow and ruffled. I picked her up and she was light as a feather and essentially skin and bones. I felt and still do, awful. How did I miss this? My husband and I both just thought she was becoming more friendly and unfortunately it was due to her illness. I made her an electrolyte drink, fed her mash and offered her the usual dry feed as well. I also offered treats to perk her up but she still passed away on Monday. (( I have no clue what caused it. I looked her over when I brought her inside to try and nurse her back to health and saw no mites, no peck marks, blood, or any sign of trauma. Her eyes were clear. There was no mucus or drainage from her eyes, mouth, etc. She even was eating and drinking on her own while in her hospital box inside the house. She would attemp to jump out occasionally and then literally the next morning I found her passed away. My husband and his family although farmers didn't know what the proper care of chickens was: I.e. worming them, dusting, etc so I worry that may have caused my hen to pass. I discovered worming, dusting, etc. when looking up information for the sick hen. We have now wormed our remaining chickens with liquid Safeguard for goats although my husband still disagrees that they need it. What else regular care wise, should I be doing? When you know better you do better. Any idea what happened to my Delaware hen? Thank you all for the information and reading my long winded post. Much appreciated!