Corvus kubaryi
The Mariana Crow, or 'Aga' in Chamorro, is a sleek and intelligent member of the Corvidae family, endemic to the Mariana Islands. This medium-sized crow typically measures 38-41 cm (15-16 inches) in length, featuring entirely glossy black plumage that often exhibits stunning iridescent sheens of blue, purple, and green under good lighting. Its distinctive field marks include its all-black appearance, a relatively slender body compared to some continental crows, and a heavy, slightly arched bl...
Found primarily in native limestone and secondary forests, often tolerating disturbed areas adjacent to forest patches for foraging, typically at low to mid-elevations.
Omnivorous, their diet consists mainly of insects (spiders, beetles, orthopterans), native and introduced fruits, seeds, and occasionally eggs, nestlings, or small lizards.
Mariana Crows are diurnal, actively foraging throughout the day and gathering in family groups or small flocks to roost communally at night. Their foraging strategies are diverse; they glean insects from bark and foliage, forage on the ground for fallen fruits and seeds, and are known to take egg...
The Mariana Crow is endemic to the Mariana Islands in the western Pacific. Historically, its breeding range encompassed the islands of Guam, Rota, Tinian, and Saipan. However, due to the devastating impact of the introduced Brown Tree Snake, the species is now extirpated from Guam. Remaining wild...
Critically Endangered
- The Mariana Crow is one of the most endangered crow species in the world, classified as Critically Endangered by the IUCN. - They are endemic to the Mariana Islands, a small archipelago in the western Pacific Ocean. - Known locally as 'Aga' by the indigenous Chamorro people, reflecting their hi...