David Grant, a veterinarian with over five decades of experience, has provided guidance on the issue of feather pecking and potential mite infestation in budgerigars. The advice comes in response to a query about a five-year-old male budgerigar that began pecking at its feathers after being relocated to an upstairs room.

Grant highlighted the possibility that feather pecking may be linked to an infestation of Dermanyssus gallinae, commonly known as the red mite. This parasite is typically associated with poultry environments, where it causes intense itching. However, research dating back to 1979 by veterinarian David Brockis showed that the red mite could also affect small pets such as budgerigars. The mite can be transmitted from wild birds nesting in the eaves of houses into living spaces, especially when nests become vacant and mites move indoors through openings like windows. Birds housed in rooms close to the roof are therefore more vulnerable to infestation.

Signs of a red mite infestation in budgerigars include increased restlessness, particularly during nighttime hours when the mite feeds, as well as scratching or feather pecking. Severe infestations may lead to decreased appetite and even anemia. Persistent itching presents a significant welfare concern for affected birds.

Grant recommends consulting a veterinarian if these symptoms appear. He advises bringing the bird to the vet in its carrier without cleaning out the cage beforehand, so that debris on the cage floor can be examined for mites. In some cases, a vet may also suggest a trial treatment based on the clinical signs observed.

Overall, while feather pecking in budgerigars can have multiple causes, the potential role of red mite infestation should be considered, particularly when birds are housed near areas where wild birds nest. Early veterinary assessment is important to identify and address this condition effectively.