The site was identified as important in 2001 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.Populations meeting IBA criteria ('trigger species'):
|Species||Current IUCN Red List Category||Season||Year(s)||Population estimate at site||IBA criteria met|
|Brandt's Cormorant Urile penicillatus||LC||passage||1995||900 individuals||A4i|
|Mew Gull Larus canus||LC||passage||1995||500 individuals||A4i|
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2001).
|Protected area (PA)||PA designation||PA area (ha)||Relationship of PA with IBA||Overlap of PA with IBA (ha)|
|Sidney Spit Marine||Provincial Park||400||protected area overlaps with site||330|
|Shoal Harbour||Migratory Bird Sanctuary||150||protected area contained by site||140|
|McDonald||Provincial Park||468||protected area overlaps with site||10|
|Gulf Islands National Park Reserve Of Canada||National Park||3,695||protected area overlaps with site||3|
|Land-use||Extent (% of site)|
|nature conservation and research||-|
BirdLife International (2023) Important Bird Area factsheet: Sidney Channel. Downloaded from http://datazone.birdlife.org/site/factsheet/sidney-channel-iba-canada on 04/12/2023.