Which of these can be a sign of bird flu in chickens?

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  1. A bright red, healthy comb
  2. Swollen, purple comb, wattles or legs
  3. Laying more eggs than usual

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References

  1. Avian Influenza, USDA APHIS www.aphis.usda.gov/livestock-poultry-disease/avian/avian-influenza Checked 2026-10-11.
  2. How To Spot Sickness, Defend the Flock, USDA APHIS www.aphis.usda.gov/livestock-poultry-disease/avian/defend-the-flock/how-to-spot-sickness Checked 2026-10-11.

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