Two days ago, Friday, I saw my Wyandotte hen, Flora, favoring her foot; not putting weight on it and hobbling. I picked her up, saw a dark spot on her pad and a darkening on one toe. She was just at one year old. As a day-old chick, before I even got her, she had injured a toe on that foot which resulted in it being splayed, or twisted. I soaked the foot in Betadine, then applied Neosporin and wrapped it with gauze and open-weave medical tape. She was quiet and I put her in a private hutch overnight. in the morning, I saw that she had not moved and her vent area needd cleaning, which we did. We changed the dressing. I gave her a dose of a broad-spectrum antibiotic. Then I put her by food and water. She drank water, but not really interested in eating. She was unable to stand at all. I put her in an isolation box with straw bedding in our house. She was appearing weaker, but the dark spots were diminishing. This morning, she was weaker still, and I noted a slight raspiness when exhaling. Legs dangled. I cradled her in my arms. She beat her wings for a few seconds, then went limp and was dead. The other hens appear healthy so I don't think this was due to a communicable disease. I didn't notice mites or other sources of parasites. She hadn't been laying eggs for these few days. I don't know if there was a connection between that and this medical problem or not. We will bury Flora today. Maybe I did something wrong about the coop. More straw, change bedding more often --- I don't know. I didn't see anything that could have caused her to injure her foot. The girls do free-range. Any thoughts about what might have caused this, or what I needed to do differently?