What is another name for the uropygial gland in chickens?

The uropygial gland in chickens, also known as the preen gland, serves a crucial role in maintaining the health and condition of their feathers. This gland produces an oily secretion that birds use to coat their feathers while preening. This action helps to waterproof the feathers, providing protection against moisture and keeping them in good condition. The secretion also contains substances that may have antibacterial properties, further contributing to feather health.

While "oil gland" is a common colloquial term, the term "preen gland" is scientifically accurate and widely recognized. The other options, such as "moisture gland" or "fat gland," do not accurately describe the primary function and characteristics of the uropygial gland in chickens. Understanding the proper terminology is essential for anyone involved in poultry care and showmanship.