Auk Sea Bird That Nests on Cliffs

This page is the CodyCross answer for the clue below from Dogs, Group 1640, Puzzle 2 (Competitions).

Question is: Auk Sea Bird That Nests on Cliffs

and the answer is: GUILLEMOT

Word Meaning:

GUILLEMOT — Any seabird belonging to the genera Uria and Cepphus of the auk family Alcidae. They have black and white bodies and are good at swimming and diving.

Definitions from Wiktionary.