I'm very sorry for your loss.I had to put one of my more pet chickens down last night. She had frozen her feet during the flashfreeze we had and got horrible frostbite. She ended up with one permanently swollen foot and one dead foot that stayed attached. We had hoped when it fell off that her stump would be healed and closed since she still would be able to move around, but it wasn't and we knew it was more than likely so, so painful for her with a wound like that, not to mention she would certainly get an infection.
I cried the whole time I held her, which I really don't do normally, but she was one I had just found in my heart. It's okay to cry, I want to cry just thinking about it, but it couldn't have been fixed unfortunately and I couldn't bare to make her hurt even more