Onchon field

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
Whooper Swan Cygnus cygnus LC winter 2004 370 individuals A4i
Swan Goose Anser cygnoid VU winter 2004 present A1
Greater White-fronted Goose Anser albifrons LC passage 2004 9,000 individuals A4i
White-naped Crane Antigone vipio VU winter 2004 present A1
Red-crowned Crane Grus japonensis EN passage 2004 present A1, A4i
Hooded Crane Grus monacha VU passage 2004 present A1
Black-faced Spoonbill Platalea minor EN - 2004 present A1, A4i
Chinese Egret Egretta eulophotes VU breeding 2004 present A1, A4i

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


IUCN Habitat Habitat detail Extent (% of site)
Wetlands (inland) Freshwater lakes and pools, Saltpans -
Artificial/Terrestrial Rice paddies -
For further information about the habitat classification please click here.

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Onchon field. Downloaded from on 20/09/2020.