Western Chain

Year of compilation: 2014

Key biodiversity

Snares Penguin, Salvin's Albatross, Buller's Albatross (Southern Buller's Albatross), Chatham Albatross.

Besides the trigger species the following species are confirmed or likely to be breeding: Snares Cape Petrel, Mottled Petrel, Sooty Shearwater, Fairy Prion, Fulmar Prion, Broad-billed Prion, Common Diving Petrel, Brown Skua, Southern Black-backed Gull, Red-billed Gull, Antarctic Tern.

Black-browed Albatross (n=3) and White-capped Albatross (n=2) have been observed on the ground or flying over islands.

Other species recorded: Little Penguin, Erect-crested Penguin, Black Shag, Mallard, White-fronted Tern, Song Thrush.

Pressure/threats to key biodiversity

The islands are pest and disease-free with access is strictly limited and difficult. However, invasion is a threat from the occasional landing party.

Human disturbance – No
Predation by alien species – No
Habitat loss or degradation – No
Contamination – No
Natural disaster – No
Other – No

Protected areas

Snares Island - Nature Reserve - Protected area overlaps with site

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Western Chain. Downloaded from on 09/06/2023.