Description Smallest of all boobies. Bill is pale blue.
Juveniles are wholly brown or blackish gray with black bill and facial skin.
Immature have patchy underwings without definite pattern, white back, mottled gray-brown head, and red or brownish legs. Midway Population Midway island's Red-footed Boobies are a white color morph. Adult birds have white body and tail plumage. Upperwings have black primary and greater secondary coverts. Feeding Habits Feeds by diving vertically into the water and rarely within sight of land.