Copper River Delta


IBA Justification

The site was identified as internationally important for bird conservation in 2009 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 List Season (year/s of estimate) Size IBA criteria
Trumpeter Swan Cygnus buccinator LC non-breeding (2004) 1,159 birds A4i
Dunlin Calidris alpina NT passage (1993) 950,000 birds A4i
Western Sandpiper Calidris mauri LC passage (1993) 4,100,000 birds A4i
Glaucous-winged Gull Larus glaucescens LC breeding (1974) 11,000 birds A4i

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
- Copper Sands Rna Origional Boundary Research Natural Area (Ia) 1
- Copper Sands Research Natural Area (Ia) 1
1978 Copper River Delta Critical Habitat Area (V) 47
1990 Kayak Island State Marine Park (V) <1
1990 Kayak Island, State Selection Alaska State Selection (V) <1
1990 Boswell Bay Beaches State Marine Park (V) <1
1990 Canoe Passage State Marine Park (V) <1
1999 Copper River Delta Megasite Fee Private Conservation Land (V) <1


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Copper River Delta (USA). Downloaded from https://datazone.birdlife.org/site/factsheet/copper-river-delta-iba-usa on 23/12/2024.