lpaul

To be honest I am not sure that the photos are good enough to permit a reliable id.  That said, I would favour Bulwer's Petrel.  There appears to be an extensive paler area on the upperwing and the tail looks too thin and finely tapered.  In addtion Wedge-tailed typically flies with the carpal held well forward and the wing tip swept backwards.  The body also looks very slender and petrel-like.