Chicken Illness

[Studio Mike]

Hi, we have a chicken coop with 22 birds. Yesterday we noticed our 1 year old Barred Rock Hen was lethargic and not eating and not laying. She is normally hard to catch but we were able to walk up to her and pick her up with no reaction from her. We separated her from the coop and just now she had a spasm and stopped breathing and died. Does anyone have an idea of what this may be? It's not much to go on for symptoms, she looked healthy. Should we be concerned for the rest of the flock? We buried her away from the coop.

Thanks so much!

 

[willowbranchfarm]

Has she been wormed??? Did she have mites or lice??? Did she have any bad smells??? Did she have runny poop.