The critically endangered Fiji Petrel Pseudobulweria macgillivrayi is believed to breed only on the island of Gau, Fiji, but its nesting grounds have yet to be located.
Until a bird was captured, documented and released in 1984, the species was known from only a single museum specimen (collected in 1855).
Since then three additional specimens, in 1985, 2007 and 2009 have been obtained and a handful of verified sightings made of the species. Known potential threats on Gau include predation by introduced cats, rats, and recently feral pigs.
Although our knowledge of this elusive species is slowly increasing, the timing of the breeding cycle remains uncertain, making the search for nesting sites particularly challenging.
pdf Paper: Fiji Petrel Project – Background Information