Torresian crow

Corvus orru subfamily

Corvinae taxonomy

Corvus orru Bonaparte, 1851, New Guinea. Four subspecies. other common names

English: Australian crow; French: Corbeau de Torres; German: Salvadorikrahe; Spanish: Cuervo Australiano.

physical characteristics 19.5-21.45 in (50-55 cm); 15.05-23.45 oz (430-670 g). Plumage is entirely black with a strong purple or bluish purple gloss. Bill, legs, and feet are also black.

distribution

Australia, New Guinea, and neighboring islands of Indonesia. habitat

Edges of rainforest, open forest, woodlands and tall scrub, coastal margins, ranges and gorges of arid areas, human settlements.

behavior

The only one of five very similar Australian crow species to adopt a curious post-alighting behavior. The Torresian crow lands, then promptly begins shuffling its wings up and down.

feeding ecology and diet

Omnivorous, feeding mainly on insects, fruit, seeds, and carrion.

reproductive biology

Solitary tree nester. Lays two to five eggs. Incubation is 16-20 days; fledging is 34-38 days.

conservation status

Listed as Near Threatened in the Action Plan for Australian Birds 2000.

significance to humans

Considered an agricultural pest, as it feeds on grain, peanuts, and fruit. ♦

0 0

Post a comment