Mottled Petrel

Pterodroma inexpectata

Order

PROCELLARIIFORMES

Family

Petrels and Shearwaters (Procellariidae)

Code 4

MOPE

Code 6

PTEINE

ITIS

Breeding Location:

Islands, sandy or rocky

Breeding Type:

Monogamous, Colonial

Breeding Population:

Rare

Egg Color:

White

Number of Eggs:

Incubation Days:

Egg Incubator:

Both sexes

Nest Material:

No material added to nest.

Migration:

Migratory

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General

Mottled Petrel: Medium-sized petrel, mostly gray with mottled white markings. Face is gray and white and, throat, upper breast, and undertail are white. Wings have distinct black bars on white undersides. Sexes are similar.

Range and Habitat

Mottled Petrel: Breeds on islands off New Zealand. Spring and summer visitor to Bering Sea and cool northeastern Pacific; rarely south to Oregon and California. Pelagic, only comes ashore to breed.

Breeding and Nesting

Mottled Petrel: One white egg is laid on a pile of grass in a burrow or crevice. Incubation is carried out by both parents for 54 days.

Foraging and Feeding

Mottled Petrel: Feeds on small squid and fish; does not follow ships.

Vocalization

Mottled Petrel: On breeding grounds gives a repetitive, rapid "ti-ti-ti." Also utters a deep, bugle-note "goo-oo."

Similar Species

Mottled Petrel: Cook's Petrel has white underparts, underwings, and outer tail feathers.

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Bird Call Credits: The Macaulay Library of Natural Sounds at the Cornell Lab of Ornithology. Martyn Stewart, http://www.naturesound.org, Redmond, Washington USA. The reuse or copying of bird calls in this database is strictly forbidden2.

Field Guide to Birds of North America