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Location Northern Mariana Islands (to USA), Saipan Island
Central coordinates 145o 49.00' East  15o 16.00' North
IBA criteria A1, A2
Area 731 ha
Altitude 0 - 235m
Year of IBA assessment 2007





Site description The proposed Northern Saipan IBA is located on the island of Saipan. The proposed IBA contains two areas that are currently protected by CNMI law as conservation areas: Bird Island and land up to and including the Saipan Upland Mitigation Bank. The IBA also includes the Marpi area that is not protected. Bird Island has small populations of terrestrial and sea birds. The Mitigation Bank is an area that has specifically been set aside for the protection of Nightingale Reed Warblers and as mitigation for development in other locations that disturbs warblers.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Micronesian Scrubfowl Megapodius laperouse resident  1982  < 50 individuals  unknown  A1, A2  Endangered 
Mariana Fruit-dove Ptilinopus roseicapilla resident  1982  1,000-2,499 individuals  unknown  A1, A2  Endangered 
White-throated Ground-dove Alopecoenas xanthonurus resident  1982  50-249 individuals  unknown  A1, A2  Near Threatened 
Mariana Swiftlet Aerodramus bartschi resident  1982  2,500-9,999 individuals  unknown  A1, A2  Endangered 
Micronesian Myzomela Myzomela rubratra resident  1982  10,000-19,999 individuals  unknown  A2  Least Concern 
Rufous Fantail Rhipidura rufifrons resident  1982  20,000-49,999 individuals  unknown  A2  Least Concern 
Nightingale Reed-warbler Acrocephalus luscinius resident  1982  1,000-2,499 individuals  unknown  A1, A2  Critically Endangered 
Bridled White-eye Zosterops conspicillatus resident  1982  100,000-499,999 individuals  unknown  A1, A2  Endangered 
Golden White-eye Cleptornis marchei resident  1982  20,000-49,999 individuals  unknown  A1, A2  Critically Endangered 
Micronesian Starling Aplonis opaca resident  1982  1,000-2,499 individuals  unknown  A2  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Kagman Conservation Area Primeval Reserve 174 unknown 0  

Protection status The proposed IBA contains two areas that are currently protected by CNMI law as conservation areas: Bird Island and land up to and including the Saipan Upland Mitigation Bank. Bird Island has small populations of terrestrial and sea birds. The Mitigation Bank is an area that has specifically been set aside for the protection of Nightingale Reed Warblers and as mitigation for development in other locations that disturbs warblers.

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Northern Saipan. Downloaded from http://www.birdlife.org on 26/10/2014

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