The resulting irritation causes swelling which elevates the scales and makes the infested area appear rough and distorted. A white, powdery substance often seen under the raised scales contains dead mite carcasses, eggs, bits of tissue and other debris. Birds infested with scaly leg mites are uncomfortable and may pick at their legs and feet, trying to dislodge loose scales and material. Bacteria may invade infested areas and create additional irritation. Scales are dislodged and bleeding may result in servere cases.
Extreme infestations can result in lame birds and even lost toes.
The symptoms associated with leg mites develop slowly. They are rarely seen on birds under 12 weeks of age. Mixing poultry of different ages makes it more difficult to control. Birds with feathered shanks and feet tend to be more prone to scaly legs. If your flock tends to get scaly mite infestation, take a look at your management.