Pseudibis-davisoni, White-shouldered Ibis

Written by on November 19, 2010 in Indonesia Bird with 0 Comments

Pseudibis-davisoni, White-shouldered Ibis, Ibis Karau


The White-shouldered Ibis, Pseudibis davisoni, is a species of wading bird of the ibis family, Threskiornithidae. It occurs at a few sites in northern Cambodia, southern Vietnam, extreme southern Laos and East Kalimantan in Indonesia.

The White-shouldered Ibis occurs in lakes, pools, marshes and slow-flowing rivers in open lowland forest. It also inhabits sparsely wooded, dry or wet grasslands and wide rivers with sand and gravel bars.

Adults are typically 75-85 cm long, dark plumaged, with a distinctive pale collar which at close range appears bluish. The bald head is black, the legs are red, and it has a whitish patch on the inner forewing, which gives the bird its name.

Due to small population size and ongoing habitat loss through logging of lowland forests and drainage of wetlands for agriculture, the White-shouldered Ibis is evaluated as Critically Endangered on the IUCN Red List of Threatened Species. The current world population is estimated to be less than 250.

The binomial commemorates William Ruxton Davison.

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