Update on our two hens.
Amelia died yesterday. She was the weaker of the two. Unfortunately, she was our favorite chicken of all time. She is the girl who would leave the flock, let herself in through the screen door separation, hop up onto Pati napping on the couch, and lie down and sleep with her. She also was quite accurate if not actually graceful in her leaping into the air for flour tortilla treats. Hilarious.
Emma, the other pet hen who was sick, has practically recovered and is strong enough to be out with her flock. She spent a full week in the house, so when I returned her to the coop, I raised the heater thermostat to help her readjust to the cold nights. She's been busy digging, chicken dancing (scratching), singing, and snoozing in the sun.
We appreciate the help we received from the forum posters who have chimed in.
I'd intended to necropsy one or both if they died. It's still too soon and too raw to be cutting Amelia open. I probably can do that later on when we prepare to bury her. The ground is frozen, so that burial task will have to wait a few months.