Bird - Knemidocoptic Mange

General information

While many owners believe parasites are common causes of skin disorders and feather loss in birds, this is usually not the case. However, Cnemidocoptic mange, also called 'cere mites' is a fairly common disorder, particularly in some of the smaller species of birds.

What causes Cnemidocoptic mange?

Cnemidocoptic mange is caused by a small microscopic parasite called a mite. The technical name for the particular mite involved is called Cnemidocoptes pilae.

What species of birds are usually infected?

Most commonly, budgerigars (or budgies) and canaries are infected.

How can I tell if my bird is infected?

There are certain typical lesions that occur in birds with the infection. The lay term for Cnemidocoptic mange is 'scaly leg and face disease'. Large amounts of honeycombed-looking scales and crusts are noticed on the bird's beak, cere (the area on the face for the nasal openings), and/or legs. In canaries, the lesions are a bit different and cause crusted projections from the legs, giving the condition in canaries its common name of 'tassle-foot'. The veterinary surgeon can usually confirm your suspicions with a physical examination and microscopic analysis of the crusts, which will reveal the presence of the mite.

How did my bird become infected?

The disease is usually transmitted as a result of close contact between infected birds. However, it is also felt that there is a genetic predisposition to the condition, as not every bird exposed to an infected one develops the condition. It may also be related to immunity – some birds appear to carry mites for years before a period of stress (e.g. mixing birds) allows clinical disease to develop.

Is there any treatment available?

Ivermectin is usually effective as a spot-on treatment. Commercially available preparations are available both from veterinary surgeons and pet shops. However, they should only ever be used in accordance with manufacturers’ guidelines and ideally, only after consultation with a veterinary surgeon - if used inappropriately these preparations may confuse or even hinder diagnosis.