Dust bathing

Dust bathing (also called sand bathing) is an animal behavior characterized by rolling or moving around in dust or sand, with the likely purpose of removing parasites from fur, feathers or skin. Dust bathing is a maintenance behavior performed by a wide range of mammalian and avian species. For some animals, dust baths are necessary to maintain healthy feathers, skin, or fur, similar to bathing in water or wallowing in mud. In some mammals, dust bathing may be a way of transmitting chemical signals (or pheromones) to the ground which marks an individual's territory.

Birds cower close to the ground while taking a dust bath, vigorously wriggling their bodies and flapping their wings. This disperses loose substrate into the air. The birds spread one or both wings which allows the falling substrate to fall between the feathers and reach the skin. The dust bath is often followed by thorough shaking to further ruffle the feathers which may be accompanied with preening using the bill.

The California quail is a highly sociable bird; one of their daily communal activities is a dust bath. A group of quail will select an area where the ground has been freshly turned or is soft. Using their underbellies, they burrow downward into the soil about 2 to 5 cm. They then wriggle about in the indentations, flapping their wings and ruffling their feathers, causing dust to rise in the air. They seem to prefer sunny places in which to create these dust baths. An ornithologist is able to detect the presence of quail in an area by spotting the circular indentations left behind in the soft dirt, some 7–15 cm (3-6 inches) in diameter.

Birds without a uropygial gland (e.g., the emu, kiwi, ostrich and bustard) rely on dust bathing to keep their feathers healthy and dry.

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