email a friend
printable version
Location Japan, Kyoto
Central coordinates 135o 26.00' East  35o 41.00' North
IBA criteria A1, A2, A4ii, A4iii
Area 471 ha
Altitude 0 - 169m
Year of IBA assessment 2004

Wild Bird Society of Japan

Site description Kanmurijima islet: The site is an islet located at about 30 km off shore of Maizuru City, Kyoto Prefecture. It is 413 m wide from east to west, 1,316 m long from north to south, 22.3 ha in area and 169.7 m above sea level at the highest point. The entire islet is designated as a natural monument for the breeding colony of Streaked Shearwater. Evergreen broadleaf trees such as Castanopsis cuspdata cover the islet, and its circumference is formed by steep cliffs except in some places. Kutsujima islet: This islet is located on the north of Kanmurijima. It is a long and narrow rock surfaced islet with a few shrubs. Besides thousands of Black-tailed Gulls, breeding of the Japanese Murrelet and Swinhoe's Storm-petrel has been confirmed.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Streaked Shearwater Calonectris leucomelas breeding  2004  present  A4ii  Near Threatened 
Swinhoe's Storm-petrel Hydrobates monorhis resident  2004  present  A4ii  Near Threatened 
Japanese Murrelet Synthliboramphus wumizusume resident  2004  present  A1  Vulnerable 
Japanese Woodpigeon Columba janthina resident  2004  present  A2  Near Threatened 
A4iii Species group - seabirds breeding  2004  min 10,000 breeding pairs  A4iii   

IBA Monitoring

2010 low not assessed low
Poor - based on little, or potentially unreliable/unrepresentative, data

No known threats no known threats happening now whole area/population (>90%) no or imperceptible deterioration low

Whole area of site (>90%) covered by appropriate conservation designation  Unknown  Unknown  low 


IUCN habitat Habitat detail Extent (% of site)
Coastline Rock stacks and islands; Sea cliffs and rocky shores  -

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Kanmurijima and Kutsujima islets. Downloaded from on 25/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife