Pigeon

Yellow sediment formed in the oral and pharyngeal mucosa, salivation, mental depression, weight loss, decreased appetite, and diarrhea

Mental exhaustion, difficulty breathing, neck constriction, decreased appetite, weight loss, diarrhea, weakened eye sand, progressive malnutrition of feathers, extensive shedding, and deformed beak

Vomiting, diarrhea, decreased appetite, weight loss

Sudden death, liver necrosis

Enteritis, diarrhea, elevated body temperature, mental depression, fluffy feathers, leg paralysis, head twisting, drooping wings, muscle tremor, turning and other neurological symptoms