Boyd's Shearwater breeds on the Cape Verde Islands. Its back and wings are dark, its underside is white, and it takes small fish and cephalopods at sea.
The upperparts are dark and the underside is white. White also extends around the eye and along the sides of the head.
It nests on small islands and rocky slopes and feeds in nearby waters, using shallow dives to catch small fish and cephalopods.
An extinction-risk assessment has not been added yet.