Hi All, I'm hoping someone can help /advise. Over the last year I have lost a couple of chickens to a strange illness. Symptoms: Tired Weak Lethargic Lying down a lot Breathing issue Hunched with ruffled feathers Unfortunately one girl died the other day in my arms and others are showing symptoms. Please can someone advise? The latest one had weird yellow stuff coming out of her beak before and when she died? Any advice or suggestions are greatly appreciated.