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AVIAN POX Avian pox is another possible cause of wart-like growths on a bird and can occur in two forms. In the most common form (cutaneous pox), wart-like growths form around the eyes, beak and on unfeathered skin, including the legs. This often results in difficulty in breathing, feeding and seeing. In the less common form of pox (diphtheritic pox) the growths form inside the mouth, throat, lungs and windpipe. This results in difficulty in swallowing and breathing. Birds suffering from the disease (in either form) usually appear weak and emaciated. The disease is both highly contagious and highly infectious, with the ability to remain in dried scabs for long periods of time. It is thought that the disease may be a significant mortality factor in some songbird populations worldwide during winter but its impact within Britain is unclear. The hygiene precautions suggested for feeding stations elsewhere in these webpages should help to limit the spread of the disease. Poultry are susceptible to the disease and, Worldwide, many are vacinated against pox.
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