IBA Trigger species: Black-billed Gull, Black-fronted Tern, Black Stilt, Wrybill, Australasian Bittern
Besides the trigger species the following species are confirmed or likely to be breeding: Australasian Crested Grebe, Black Shag, Little Shag, White-faced Heron, Black Swan, Canada Goose, Paradise Shelduck, NZ Shoveler, Mallard, Grey Duck, Grey Teal, NZ Scaup, Australasian Harrier, Marsh (Baillon’s) Crake, Pukeko, South Island Pied Oystercatcher, Pied Stilt, Banded Dotterel, Spur-winged Plover, Southern Black-backed Gull, Caspian Tern, Californian Quail, Rock Pigeon, NZ Kingfisher, Welcome Swallow, NZ Pipit, South Island Fantail, Grey Warbler, Bellbird, Silvereye, Skylark, Hedge Sparrow, Blackbird, Song Thrush, Yellowhammer, Chaffinch, Greenfinch, Goldfinch, Redpoll, House Sparrow, Starling, Australian Magpie. Other species recorded: NZ Falcon, Kea (VU).
BirdLife International (2021) Important Bird Areas factsheet: Godley Cass Rivers. Downloaded from http://www.birdlife.org on 06/12/2021.