This Salvin's Prion was wrecked in the storms in July 2011 in southern North Island was was being cared for in Johnsonvllle near Wellington. It was one of about three of this species I saw amongst hundreds of Broad-billed Prions. It is almost indistinguishable from the Antarctic Prion, in the hand it is separated by the wider bill and the visible lamellae (teeth like serrations) at the base of the bill.
The birds of Norfolk & Lord Howe Islands and the Australasian South Polar quadrant :London :H.F. & G. Witherby,1928.biodiversitylibrary.org/page/58795361
The birds of Norfolk & Lord Howe Islands and the Australasian South Polar quadrant :London :H.F. & G. Witherby,1928.biodiversitylibrary.org/page/58795379
The birds of Norfolk & Lord Howe Islands and the Australasian South Polar quadrant :London :H.F. & G. Witherby,1928.biodiversitylibrary.org/page/58795376
The birds of Norfolk & Lord Howe Islands and the Australasian South Polar quadrant :London :H.F. & G. Witherby,1928.biodiversitylibrary.org/page/58795173
One day while we were doing routine maintenance on the Bonin boxes we opened one up and a pair were inside. Very early prospectors! I unslung my camera to get a few photographs before leaving them be. Like many prospecting petrels they will hang out in their sites for several months before breeding. Tern Island, Northwestern Hawaiian Islands. USFWS PD