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Genus Procellaria
White-chinned Petrel - The White-chinned Petrel is a member of the Procellaria genus, and in turn is a member of the Procellariidae family, and the Procellariiformes order. As a member of the Procellariiformes, they share certain identifying features. First, they have nasal passages that attach to the upper bill called naricorns. Although the nostrils on the Prion are on top of the upper bill. The bills of Procellariiformes are also unique in that they are split into between 7 and 9 horny plates. They produce a stomach oil made up of wax esters and triglycerides that is stored in the proventriculus. This is used against predators as well as an energy rich food source for chicks and for the adults during their long flights.
Grey Shearwater - The Grey Petrel is a member of the Procellaria genus, and in turn is member of the Procellariidae family, and the Procellariiformes order. As a member of the Procellariiformes, they share certain identifying features. First, they have nasal passages that attach to the upper bill called naricorns. Although the nostrils on the Prion are on top of the upper bill. The bills of Procellariiformes are also unique in that they are split into between 7 and 9 horny plates. They produce a stomach oil made up of wax esters and triglycerides that is stored in the proventriculus. This is used against predators as well as an energy rich food source for chicks and for the adults during their long flights.
Procellaria conspicillata - The Spectacled Petrel, Procellaria conspicillata, is a rare seabird that nests only on the high western plateau of Inaccessible Island in the Tristan da Cunha group. It is one of the largest petrels that nest in burrows.
Parkinson's Petrel - The species is an endemic breeder of New Zealand, breeding only on islands off the North Island, on Great Barrier Island and Little Barrier Island. At sea it disperses as far as Australia and Peru.
Westland Black Petrel - The Westland Petrel is an all dark bird with a yellowish bill and dark legs. It is a large member of the petrel and shearwater family. It has a highly restricted breeding range, currently confined to a small area of the west coast of New Zealand's South Island in an area protected in Paparoa National Park in dense forested hills. At sea it ranges from Tasmania to Chile taking fish and squid, as well as fishery waste.