Subphylum Vertebrata Rank Species | Phylum Chordata Subfamily Threskionithinae Higher classification Pseudibis | |
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Similar Pseudibis, Bird, Giant ibis, Spot‑breasted ibis, Olive ibis | ||
White shouldered ibis roost
The white-shouldered ibis (Pseudibis davisoni ) is a species of wading bird of the ibis family, Threskiornithidae.
Contents
- White shouldered ibis roost
- White shouldered ibis looking for nest building material
- Geographic range
- Habitat
- Description
- Conservation status
- Etymology
- References
White shouldered ibis looking for nest building material
Geographic range
P. davisoni occurs at a few sites in northern Cambodia, southern Vietnam, extreme southern Laos, and East Kalimantan in Indonesia.
Habitat
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.
Description
Adults are typically 75–85 cm (30–33 in) 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.
Conservation status
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 was estimated to be less than 250, possibly as low as 49, although a 2009 survey of the species has counted 310 individuals. In 2010 a record 429 were found in Cambodia, of which more than 170 birds were in Lomphat Wildlife Sanctuary. This site is now the second most important place in the world for this species. With a known population of over 200 examples, western Siem Pang IBA is the first.
Etymology
The binomial commemorates William Ruxton Davison.
