Below you can find the This process usually includes taking oil from a gland at the base of the tail & applying it to the feathers Jeopardy Words Answer. The answer to This process usually includes taking oil from a gland at the base of the tail & applying it to the feathers has 8 letters. This clue belongs to the Birds category and is part of Jeopardy Word Level 741. If you scroll near the bottom you will find other clues and answers part of level 741