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First census of the white-shouldered ibis Pseudibis davisoni reveals roost-site mismatch with Cambodia's protected areas

  • Hugh L. Wright (a1), Nigel J. Collar (a2), Iain R. Lake (a1), Net Norin (a3), Rours Vann (a4), Sok Ko (a5), Sum Phearun (a6) and Paul M. Dolman (a1)...

The population size of the Critically Endangered white-shouldered ibis Pseudibis davisoni has always been poorly known. The first-ever census across Cambodia in 2009–2010 using simultaneous counts at multiple roost sites found substantially more birds than previously estimated, with a minimum of 523 individuals. The census allowed us to make a revised global population estimate of 731–856 individuals, increasing hope for the species' long-term survival. However, the largest subpopulations are imminently threatened by development and c. 75% of the birds counted in Cambodia were outside protected areas.

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  • ISSN: 0030-6053
  • EISSN: 1365-3008
  • URL: /core/journals/oryx
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