[2] Adults are about 43 cm long, powerful, large, stocky, dark in color with white belly.

[3] Although the species exists in large numbers, the world population being estimated at around 5 million birds, it is listed as endangered by the IUCN.

[5] Due to reproduction mortality, this species can become locally extinct making their home range smaller.

[3] Starting around the 1970s, on Tristan da Cunha, they have programs to teach and learn about this species and why it is important for the ecosystem.

[6] Research on the House mouse is important to finding ways in reducing these predators' effect on the Atlantic Petrels.

[3] Further studies on the house mouse have focused on ways to eradicate mice on Gough Island, minimizing the risk of introducing other invasive species, and finding methods better to understand the Atlantic petrel's habits.