Grayish Duck With White Wing Patch
This page is the CodyCross answer for the clue below from Underground Worlds, Group 2177, Puzzle 4 (Edinburgh Vaults).
Question is: Grayish Duck With White Wing Patch
and the answer is: GADWALL
Word Meaning:
GADWALL — A common, widespread dabbling duck which breeds in the northern hemisphere (Mareca strepera, syn. Anas strepera).
Definitions from Wiktionary.