Howling, Yowling Sound; Made by Felines?
Puzzle 17 of Predators Hard Pack
Question is: Howling, Yowling Sound; Made by Felines?
and the answer is: CATERWAUL
Word Meaning:
CATERWAUL — (intransitive) To cry as cats in heat; to make a harsh, offensive noise.
Definitions from Wiktionary.