Cephalopods, fish and crustaceans form the majority of this species’ diet (2). Parkinson’s petrel regularly associates with dolphins, following these efficient predators in order to scavenge dismembered fish on the surface (7). In a similar manner, Parkinson’s petrel has been seen to regularly follow trawlers in order to feed on scraps. Prey is typically seized from the water’s surface, although Parkinson’s petrel may also dive to obtain its meal (2).
Parkinson’s petrel typically begins breeding at six years of age and lays a single egg per year (5). Breeding and egg-laying occur exclusively in forests, where the petrel must crash through the tree canopy to reach the ground and climb trees to take off. Using its beak and webbed feet, the petrel digs a burrow, typically one to three metres long, in which to lay the egg (3).
The egg is usually laid around December (5). The male and female will take turns to incubate the egg for a period of around 56 days. The adult petrels alternate between guarding and feeding in shifts, and are typically away from the nest for 8 to 17 days (3). The chick fledges at around three months old, with provisioning of the chick by the adults sometimes continuing for another month (2) (5). Parkinson’s petrel lives for at least 17 years (2).
Parkinson’s petrel has no natural predators though is affected by many species, including cats, dogs, rats and pigs that have been introduced to its surroundings (5).