• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

The site was identified as important in 2016 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Japanese Murrelet Synthliboramphus wumizusume	VU	breeding	1974	min 200 breeding pairs	A1, A4ii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2016) may differ.

Habitat1	Habitat detail	% of IBA
Marine Neritic		100

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Okinoshima and Koyajima islands - Marine (Japan). Downloaded from https://datazone.birdlife.org/site/factsheet/okinoshima-and-koyajima-islands--marine-iba-japan on 22/11/2024.