Pulau Dua

IBA Criteria

Year of most recent IBA criteria assessment: 1999

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Milky Stork Mycteria cinerea EN breeding 1984 10-30 individuals A1
Royal Spoonbill Platalea regia LC breeding 1970-1979 present A4i
Black-headed Ibis Threskiornis melanocephalus NT breeding 1970-1979 present A4i
Cattle Egret Bubulcus ibis LC breeding 1985 present A4i
Christmas Island Frigatebird Fregata andrewsi VU non-breeding 1987-1998 present A1
Little Cormorant Microcarbo niger LC breeding 1985 present A4i
Little Black Cormorant Phalacrocorax sulcirostris LC breeding 1985 present A4i
Oriental Darter Anhinga melanogaster NT breeding 1970-1979 present A4i
A4iii Species group - waterbirds n/a breeding 1985 min 7,500 breeding pairs A4iii

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Pulau Kasa Suaka Margasatwa 33 is identical to site 30
Pulau Dana Cagar Alam 1,000 protected area overlaps with site 0


IUCN Habitat Habitat detail Extent (% of site)
Forest -
Wetlands (inland) Sand dunes and beaches -
Shrubland -
Other -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
nature conservation and research -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Pulau Dua. Downloaded from on 08/08/2022.