Family: Procellariidae (Petrels, Shearwaters)
Authority: (Mathews, 1912)
Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
Further research is needed to understand the relative abundance of this newly-recognised species, which has a highly restricted distribution. Nevertheless, although the actual population size and trend remain unknown, it has been demonstrated that it suffered a high chick mortality rate in 2013-2014 and 2014-2015 as a result of chick predation by mice. Because it has a highly restricted breeding range on two islands, and the population is inferred to be declining as a result of invasive species, MacGillivary's Prion is listed as Endangered.
Extent of occurrence (breeding/resident):