CA321
Niagara River Corridor


IBA Justification

The site was identified as important in 2008 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
Canvasback Aythya valisineria LC winter 1997 14,000 individuals A4i
Greater Scaup Aythya marila LC winter 1997 10,000 individuals A4i
Bonaparte's Gull Larus philadelphia LC passage 1995 100,000 individuals A4i
Ring-billed Gull Larus delawarensis LC breeding 1998 16,000 breeding pairs A4i
Arctic Herring Gull Larus smithsonianus LC winter 1995 20,000 individuals A4i
A4iii Species group - waterbirds n/a passage - 50,000-99,999 individuals A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2008) may differ.


Habitats

Habitat1 Habitat detail % of IBA
Artificial/Terrestrial Other urban & industrial areas, Arable land, Urban parks & gardens major (>10)
Rocky areas (eg. inland cliffs, mountain peaks) major (>10)
Wetlands (inland) Rivers major (>10)
1. IUCN Habitat classification.

Land use

Land use % of IBA
tourism/recreation major (>10)
urban/industrial/transport major (>10)


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Niagara River Corridor (Canada). Downloaded from https://datazone.birdlife.org/site/factsheet/niagara-river-corridor-iba-canada on 23/11/2024.