Hen that died - any thoughts?

[PrairieFarmer]

Noticed a sick looking hen yesterday and put her in a separate cage last night and she was dead this morning.
She was a 4 year old Buckeye hen. Saw her laying in a corner yesterday behind the feed cans, picked her up and she felt real skinny. She might have been their a while - I've had a lot of personal family drama lately so haven't been keeping a real close eye on the birds, just feeding and watering them. I let her walk around a bit and her tail feathers were all downward and she seemed kinda hunched. Laid down pretty quick. Saw her do one runny liquidy greenish/yellow poop. No obvious injuries.
This morning she was dead and looked like some mucus (although not a lot) in the airholes on her beak. I didn't see any mucous their last night.
All my other birds seem fine.
Any thoughts?

 

[dawg53]

Greenish/yellow poop usually indicates a bad infection. There's no telling what it is. Perhaps if you had a necropsy done on her, that would let you know what you're dealing with. Sorry for your loss.