Sudden Death 

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Chickens affected by avian bird flu may experience sudden death without any prior symptoms. 

Decreased Egg Production: A noticeable decline in egg production or quality can be a sign of avian flu in laying hens. 

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Respiratory Distress: Infected chickens may exhibit respiratory symptoms such as coughing, sneezing, or difficulty breathing. 

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Swelling of Head and Face: Swelling around the eyes, head, or face is common in chickens with avian bird flu. 

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Watery Diarrhea: Diarrhea, often watery and greenish in color, can occur in infected chickens. 

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Nasal Discharge: Chickens may have nasal discharge or mucus around the beak and nostrils. 

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Lethargy and Weakness: Infected birds may appear lethargic, weak, or reluctant to move. 

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Loss of Appetite: A sudden loss of appetite or decreased interest in food is a common symptom of avian flu in chickens. 

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Drop in Weight: Chickens affected by avian bird flu may experience rapid weight loss. 

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Neurological Signs: Some chickens may exhibit neurological signs such as head tremors, circling, or paralysis. 

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Purple Discoloration: Purple discoloration of the wattles, comb, or legs can be observed in severe cases. 

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Unusual Behavior: Chickens may display unusual behavior such as isolation from the flock or reluctance to roost. 

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