Tangkoko Dua Sudara

IBA Criteria

Year of most recent IBA criteria assessment: 2004

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Maleo Macrocephalon maleo EN resident 2004 present A1
Heinrich's Nightjar Eurostopodus diabolicus VU resident 2004 present A1
Japanese Night-heron Gorsachius goisagi EN winter 2004 present A1
Minahasa Masked-owl Tyto inexspectata VU resident 2004 present A1

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

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Tangkuban Perahu Nature Recreation Park 370 protected area contains site 7,495
Gunung Dua Saudara Cagar Alam 0 protected area contained by site 0
Gn. Duasaudara Nature Reserve 4,299 protected area contained by site 0
Batu Putih Taman Wisata Alam 615 protected area overlaps with site 0
Batu Angus Taman Wisata Alam 635 protected area contained by site 0


IUCN Habitat Habitat detail Extent (% of site)
Forest -
For further information about the habitat classification please click here.

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Tangkoko Dua Sudara. Downloaded from on 05/07/2020.