What is a common sign of external parasites in poultry?

Excessive feather loss is a well-known indication of external parasites in poultry. Parasites such as mites, lice, and fleas can irritate the skin of the birds, causing them to scratch and preen excessively. This behavior can lead to a significant loss of feathers, resulting in bald patches that may become visible. The irritation and stress caused by parasites not only impact the bird's appearance but can also affect their overall health and well-being.

Increased egg production, bright coloration, and lack of interest in food are not typical signs associated with external parasites. Increased egg production usually indicates good health and optimal conditions, while vibrant coloration often reflects a bird's well-cared-for status. A lack of interest in food may point to other health issues but is not specifically tied to the presence of external parasites. Understanding these signs helps poultry keepers monitor the health of their flock and address issues promptly when they arise.