They thus represent either a plesiomorphic lineage still sharing some traits of the ancestral Procellariidae with the gadfly petrels, or convergent evolution of a shearwater to the ecological niche of gadfly petrels.
12.
The family "'Procellariidae "'is the main radiation of medium-sized "'true petrels "', characterised by united nostrils with medium septum, and a long outer functional primary.
13.
The "'Great Shearwater "'( " Puffinus gravis " ) is a large shearwater in the seabird family Procellariidae which feeds on fish and squid, which it catches from the surface or by plunge-diving.
14.
The following featured articles were displayed last week on the Main Page as Today's featured article : Chola dynasty, Georg Forster, " Al-Kateb v Godwin ", Nirvana, History of the Philippines, Vivien Leigh and Procellariidae.
15.
The "'white-necked petrel "'( " Pterodroma cervicalis " ) is a seabird in the family Procellariidae; adults measure some 43 centimetres ( 17 in ) in length, with a wingspan of 95 105 centimetres ( 37 41 in ).
16.
*Title : The separation of Pterodroma madeira ( Zino's Petrel ) from Pterodroma feae ( Fea's Petrel ) ( Aves : Procellariidae ) Author ( s ) : Zino, F; Brown, R; Biscoito, M Source : IBIS Volume : 150 Issue : 2 Pages : 326-334 Published : 2008
17.
The "'sooty shearwater "'( " Ardenna grisea " ) is a medium-large shearwater in the seabird family Procellariidae . " Ardenna " was first used to refer to a seabird by Italian naturalist Ulisse Aldrovandi in 1603, and " grisea " is medieval Latin for " grey ".
18.
The "'great shearwater "'( " Ardenna gravis "; formerly " Puffinus gravis " ) is a large shearwater in the seabird family Procellariidae . " Ardenna " was first used to refer to a seabird by Italian naturalist Ulisse Aldrovandi in 1603, and " gravis " is Latin for " heavy ".
