Uropygium meaning

The uropygium refers to the fleshy area on a bird's back where the tail feathers are attached.


Uropygium definitions

Word backwards muigyporu
Part of speech Noun
Syllabic division u-ro-py-gi-um
Plural The plural of uropygium is uropygiums.
Total letters 9
Vogais (3) u,o,i
Consonants (5) r,p,y,g,m

What is Uropygium?

The uropygium, also known as the oil gland or preen gland, is a specialized gland found near the base of a bird's tail. This gland plays a crucial role in the maintenance of a bird's plumage by secreting an oily substance that helps waterproof and condition their feathers. Uropygium is an essential part of a bird's anatomy and contributes to their overall health and well-being.

Function of the Uropygium

The uropygium gland produces a substance that birds use during preening to spread on their feathers. This oily secretion helps to protect the feathers from water damage and maintains the flexibility and alignment of the feathers. By spreading this substance evenly across their plumage, birds can effectively waterproof their feathers, keeping them clean and efficient for flight. Additionally, the uropygium gland plays a role in regulating a bird's body temperature by assisting in the insulation provided by their feathers.

Location and Structure

Located at the base of the tail, the uropygium gland is easily identifiable in many bird species. It is usually covered by feathers but can be exposed during preening. The gland itself consists of a central cavity surrounded by a thick layer of glandular tissue that produces the oily substance. Birds have specialized muscles that allow them to express the oil from the uropygium gland, which they then distribute over their feathers using their beaks during preening.

Importance of the Uropygium

The uropygium gland is vital for the health and survival of birds. Without proper oiling from this gland, a bird's feathers can become waterlogged, heavy, and lose their insulating properties. This can be particularly dangerous for birds that rely on flight for hunting, migration, or escaping predators. Regular preening and maintenance of the uropygium gland are essential for birds to thrive in their natural habitats.

In conclusion, the uropygium gland is a remarkable adaptation that allows birds to maintain their plumage and regulate their body temperature effectively. By secreting an oily substance that waterproofs their feathers, the uropygium gland enables birds to stay clean, dry, and ready for flight. Understanding the importance of the uropygium gland sheds light on the intricate mechanisms that birds have evolved to ensure their survival in diverse environments.


Uropygium Examples

  1. The uropygium of a bird is also known as the pygostyle.
  2. The uropygium is the fleshy mass at the base of a bird's tail.
  3. Birds use their uropygium to control the movement of their tail feathers.
  4. The uropygium plays a role in regulating body temperature in birds.
  5. The uropygium is an important anatomical feature for birds that fly long distances.
  6. In some bird species, the uropygium is brightly colored to attract mates.
  7. The uropygium is located near the cloaca in birds.
  8. Birds preen their uropygium to keep their feathers in good condition.
  9. In avian anatomy, the uropygium is considered a key structure for flight.
  10. The uropygium is made up of a specialized group of muscles and ligaments.


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  • Updated 11/04/2024 - 09:29:35