$Pterodroma arminjoniana Lowe & Kinnear,1930,British Antarctic ("Terra Nova")Expedition,1910:natural history report,,Zoology,4,p.137. (South Trinidad).
Marine & highly pelagic,rarely approaching land except at colonies.Breeds on oceanic islands,atolls or offshore stacks
"At Raine I.,birds present from at least February to Augugust...Breeds all or most of year in other parts of Pacific."
Adults apparently fairly sedentary.Immatures may be more mobile,dispersing over tropical and subtropical waters of Pacific Ocean. Colonies on Raine Island deserted November to January..In North Pacific appears mainly October to January,recorded north to 39°N.