27. Cepphus grylle 
BLACK GUILLEMOT. $13 inches 
Adult. In summer. Above and below black, with white patch 
on wings; bill black; feet red. In winter. Above and below 
white, more or less marked with black on back; wings black with 
white patch ; bill black; feet red. Also called Sea Pigeon. They 
dive and swim under water. 
Note. “A subdued, shrill whistle.” 
Nest. “In fissures, or under rocks.” 
Breeds. On rocky coasts from Maine northward. A winter 
visitor along the coast south to Chatham. 
It 
