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Photo: United States Geological Survey Fort Collins Science Center / Public domain (Wikimedia Commons)

Critically Endangered

Mariana Crow

Corvus kubaryi

Mariana Crow (Corvus kubaryi) — Crows, Jays & Magpies of Oceans & Seabirds.

The Mariana Crow (Corvus kubaryi) is a member of the Corvidae family found in Oceans & Seabirds. Adults weigh 250 g. The IUCN Red List lists it as Critically Endangered.

CR Critically Endangered

Facing an extremely high risk of extinction in the wild.

Where it fits

  1. Class Aves
  2. Order Passeriformes
  3. Family Corvidae Crows, Jays
  4. Genus Corvus
  5. Species kubaryi

Where it lives

Rota (southern Northern Mariana Is.) and Guam (where extinct; southern Mariana Is., western Micronesia)

Quick facts

Weight
250 g
Diet
Omnivores
Family
Corvidae
Habitat
Woodland

How to identify

Similar birds

Biology & behaviour

Diet

The Mariana Crow is a omnivore — it takes a broad, omnivorous diet of both plant and animal foods.

Behaviour

A bird of dense forest, it spends much of its time perched in trees and shrubs.

Migration

The Mariana Crow is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.

The Mariana Crow (Corvus kubaryi) belongs to the Corvidae family of the order Passeriformes. It is found across Oceans & Seabirds. Its distribution covers PO Rota (s Northern Mariana Is.) and Guam (where extinct; s Mariana Is., w Micronesia).

It is a large bird. Adults weighs around 250 g, with a wing length of about 22.6 cm and a tail of around 15.8 cm.

It is classified as Critically Endangered on the IUCN Red List and is a focus of conservation concern. Critically Endangered is the highest risk category before extinction in the wild.

The species has a mapped global range of roughly 92 km² — a relatively restricted global range.

Songs & calls

Mariana Crow — Song, monologue, sub-adult, vocal play

Recorded by Andria Kroner Licence: CC BY-NC-SA 4.0

Frequently asked questions

How big is the Mariana Crow?

The Mariana Crow is a large bird that weighs around 250 g.

Where does the Mariana Crow live?

The Mariana Crow is found across Oceans & Seabirds with a range covering PO Rota (s Northern Mariana Is.) and Guam (where extinct; s Mariana Is., w Micronesia), where it is typically found in wooded and forested habitats.

What family does the Mariana Crow belong to?

The Mariana Crow (Corvus kubaryi) belongs to the Corvidae family, in the order Passeriformes.

What does the Mariana Crow eat?

The Mariana Crow is a omnivore — it takes a broad, omnivorous diet of both plant and animal foods.

Does the Mariana Crow migrate?

The Mariana Crow is largely sedentary, staying within its range year-round rather than making regular long-distance migrations.

Is the Mariana Crow endangered?

It is classified as Critically Endangered on the IUCN Red List and is a focus of conservation concern Critically Endangered is the highest risk category before extinction in the wild.

What sound does the Mariana Crow make?

1 real field recording of the Mariana Crow — including its song — can be played in the Songs & calls section on this page, credited to the recordist who captured it.

How large is the Mariana Crow's range?

The Mariana Crow has a mapped global range of about 92 km².

Conservation

Critically Endangered

Every bird benefits from bird-safe windows, native plants, and keeping cats indoors. Small changes at home add up to real protection.

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Guides for this bird

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How to choose a feeder for jays and other big, bold garden birds — the styles that suit peanuts and larger food, and how to keep them from crowding your small-bird feeders. A decision framework with the species in the Birbs encyclopedia.

3 min read

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