Juan Fernández petrel

The Juan Fernández petrel is a species of seabird in the family Procellariidae. It nests on a single island off the coast of Chile, in the Juan Fernández Archipelago. It was previously classified as a subspecies of the white-necked petrel, which is found in tropical waters of the Pacific and Indian Oceans.

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Distribution

Region

Southeast Pacific Ocean

Typical Environment

Breeds in burrows at high elevations on Alejandro Selkirk Island, then disperses widely over the eastern and central Pacific. At sea it occupies pelagic waters far from land, often along oceanic fronts and productive upwellings such as the Humboldt Current. It forages across tropical to subtropical waters and may travel thousands of kilometers during the nonbreeding season. Nearshore appearances are rare except when returning to colonies at night.

Altitude Range

Sea level to 1200 m

Climate Zone

Subtropical

Characteristics

Size40–43 cm

Wing Span95–105 cm

Male Weight0.52 kg

Female Weight0.46 kg

Life Expectancy25 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

This gadfly petrel breeds only on Alejandro Selkirk Island in the Juan Fernández Archipelago off Chile. Outside the breeding season it ranges widely across the eastern and central Pacific, often over productive upwelling zones. It was once treated as a subspecies of the white-necked petrel but is now recognized as a full species. Major threats include invasive predators at the colony and habitat degradation.

Gallery

Behaviour

Temperament

solitary and pelagic at sea; gregarious at colonies

Flight Pattern

dynamic soaring glider with arcing sweeps and interspersed rapid wingbeats

Social Behavior

Colonial breeder nesting in burrows or rock crevices at high elevations. Mostly nocturnal at the colony to avoid predators. Pairs are monogamous, sharing incubation and chick provisioning. Young remain in burrows until fledging.

Migratory Pattern

Seasonal migrant

Song Description

Generally silent at sea. At colonies, produces wailing, yapping, and moaning calls at night, with softer coos exchanged between mates at the burrow.

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Identification

Comb Type

Plumage Description

Feather Color

Leg Color

Earlobe Color

Eye Color

Feeding Habits

Diet

Preferred Environment

Requires Supplement

Population

Conservation Status

Species Status

Wild Population

Total Known Population

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