Balearic shearwater is silent at sea, but at night the breeding colonies are alive with raucous cackling calls, higher pitched than the Manx shearwater's. The Balearic shearwater feeds on fish and molluscs. It does not follow boats. Balearic shearwater The Balearic shearwater ("Puffinus mauretanicus") is a medium-sized shearwater in the seabird family "Procellariidae". "Puffinus" is a New Latin loanword based on the English "puffin" and its variants, such as poffin, pophyn and puffing, that referred to the cured carcass of the fat nestling of the Manx shearwater, a former delicacy. The specific "mauretanicus" refers to Mauretania, an old name for an area
Bryan's shearwater Bryan's shearwater The Bryan's shearwater ("Puffinus bryani") is a species of shearwater that may occur around the Hawaiian Islands. It is the smallest species of shearwater and is black and white with a bluish gray beak and blue tarsi. First collected in 1963 and thought to be a little shearwater ("Puffinus assimilis") it was determined using DNA analysis to be distinct in 2011. It is rare and possibly threatened and there is little information on its breeding or non-breeding ranges. It is named after Edwin Horace Bryan Jr. a former curator of the B. P. Bishop Museum at Honolulu. On