preen gland
Noun
Meaning
oil-secreting gland situated at the base of the tail in most birds
Source: WordNetSynonyms
Hypernyms
Examples
In some birds, feather colors may be created, or altered, by secretions from the uropygial gland, also called the preen gland.
Like most other ratites, they have no uropygial gland (preen gland).