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Falco rusticolus

Protected Nongame
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Health Issues Which May Affect This Animal

What Causes This Disease?

Avian influenza is caused by an influenza type A virus. There are 144 different types of avian influenza viruses known. Avian Influenza viruses are categorized into two groups, high pathogenity and low pathogenicity, based on the extent of illness and death they cause in domestic poultry.

Where Is The Disease Found?

Avian influenza is found worldwide including North America. The disease is found in domestic poultry and wild waterfowl, typically in the low pathogenicity forms. Avian Influenza has been found waterfowl and raptors in Idaho.

Signs of Disease

Avian influenza can cause a variety of clinical signs in birds including lack of energy and appetite, decreased egg production, soft-shelled or misshapen eggs, swelling of the head, eyelids, comb, wattles, and hocks, purple discoloration of the wattles, combs, and legs, nasal discharge, coughing, sneezing, lack of coordination, diarrhea, or sudden death without clinical signs. At necropsy, nasal discharge, greenish, watery diarrhea and swelling around the eyes and neck can be seen. In addition, multifocal necrosis of the pancreas and liver, pulmonary congestion and edema, subepicardial hemorrhage, and myocarditis can be seen.

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