One of our chickens is about a year old and has been losing feathers for about a week or so now (they're all over the garden).
Yesterday I noticed she was hiding under a bush. I coaxed her out and she was very unsteady on her feet - trouble walking and would fall over. As she goes to eat...
We had a chicken doing this - sticking her neck out and opening her mouth. I felt her crop and it felt normal. She made a few funny noises. She also wasn't eating.
Half an hour or so later, she was eating and looked fine again.
That was this morning. It's now 2pm and she's now dead...