The Northern Giant Petrel (Macronectes halli), also known as the Hall's Giant Petrel, is a is a large seabird of the southern oceans. Its distribution overlaps broadly with the similar Southern Giant Petrel, though it overall is centered slightly further north.
The Northern Giant Petrel along with its counterpart, the Southern Giant Petrel, make up the Macronectesgenus. They come from the Procellariiformesorder, which are referred to as tube-nosed seabirds, due to their unique nose structure. All Tube-noses have tubular nostrils, and all Procellariidae have the openings on top of the upper portion of the bill. Procellariiformes also have between seven and nine distinct horny plates for their bill, and Petrels have one of these plates that form the hooked portion of their upper bill called their maxillary unguis. 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.
Macronectes giganteus can be broken down as makros a Greek word meaning long or large and......