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Location Japan, Kumamoto
Central coordinates 130o 37.00' East  32o 37.00' North
IBA criteria A1, A4i
Area 1,300 ha
Altitude 0 - 15m
Year of IBA assessment 2004

Wild Bird Society of Japan

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Black-faced Spoonbill Platalea minor winter  2004  present  A1, A4i  Endangered 
Whimbrel Numenius phaeopus 2004  present  A4i  Least Concern 
Grey-tailed Tattler Heteroscelus brevipes 2004  present  A4i  Least Concern 
Saunders's Gull Larus saundersi winter  2004  present  A1  Vulnerable 


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland) Estuarine waters; Intertidal mud, sand or salt flats  -

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Hikawa estuary, Shiranui. Downloaded from on 10/07/2014

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