The Birds of Macquarie Island are, unsurprisingly for an isolated oceanic island, predominantly seabirds. By far the majority of the breeding species are penguins, petrels and albatrosses. However, the bird list includes many vagrants, including passerines, from New Zealand and Australia.
Four species of penguin breed on Macquarie Island. The endemic royal penguin has a population estimated at 850,000. There are also 100,000 breeding pairs of king penguin, the third largest such colony in the world. Gentoo and southern rockhopper penguins also breed there. In the past the penguins, mainly the royal and king penguins, were exploited for their oil, a practice which ceased in 1919.
The four breeding species of albatross are all threatened by long-line fishing when feeding away from the island, including the most numerous, the light-mantled sooty albatross with 2000 breeding pairs, and the wandering albatross, with fewer than ten pairs breeding each year.
Many species of petrel breed on Macquarie. However, they have been adversely affected by the introduction of black rats, house mice, rabbits and cats, and the small blue petrel breeding population on the island is considered to be critically endangered. Wekas were introduced by sealers in the mid-19th century and flourished, adding to the predation threat. With the eradication of the cats and the wekas, and an ongoing program to control the rabbits (which cause erosion), there are signs that the breeding petrel populations are beginning to recover. The long-term aim is to eradicate the rodents and rabbits as well.
The Macquarie Island parakeet became extinct about 1891. The Macquarie Island rail, an endemic subspecies of the buff-banded rail, disappeared about the same time.
Anatidae
Grey teal, Anas gracilis - vagrant
Mallard, Anas platyrhynchos - vagrant, breeding recorded
Pacific black duck, Anas superciliosa - breeding, hybridising with mallard
Spheniscidae
Emperor penguin, Aptenodytes forsteri - vagrant
King penguin, Aptenodytes patagonicus - breeding, near threatened
Southern rockhopper penguin, Eudyptes chrysocome - breeding, vulnerable
Snares crested penguin, Eudyptes robustus - vagrant
Royal penguin, Eudyptes schlegeli - endemic species, vulnerable
Erect-crested penguin, Eudyptes sclateri - vagrant
Adelie penguin, Pygoscelis adeliae - vagrant
Chinstrap penguin, Pygoscelis antarctica - vagrant
Gentoo penguin, Pygoscelis papua – breeding, vulnerable
Procellariidae
Cape petrel, Daption capense - breeding
Southern fulmar, Fulmarus glacialoides - vagrant
Blue petrel, Halobaena caerulea - breeding, critically endangered
Kerguelen petrel, Lugensa brevirostris - vagrant
Southern giant petrel, Macronectes giganteus - breeding, endangered
Northern giant petrel, Macronectes halli - breeding, vulnerable
Slender-billed prion, Pachyptila belcheri - vagrant
Antarctic prion, Pachyptila desolata - breeding, vulnerable
Fairy prion, Pachyptila turtur - breeding, endangered
Snow petrel, Pagodroma nivea - vagrant
Common diving petrel, Pelecanoides urinatrix - breeding
White-chinned petrel, Procellaria aequinoctialis - vagrant
Grey petrel, Procellaria cinerea - breeding, endangered
Mottled petrel, Pterodroma inexpectata - vagrant
White-headed petrel, Pterodroma lessonii - breeding, vulnerable
Great-winged petrel, Pterodroma macroptera - vagrant
Soft-plumaged petrel, Pterodroma mollis - possibly breeding
Little shearwater, Puffinus assimilis - vagrant
Sooty shearwater, Ardenna griseus - breeding
Short-tailed shearwater, Ardenna tenuirostris - vagrant
Antarctic petrel, Thalassoica antarctica – vagrant
Diomedeidae
Shy albatross, Thalassarche cauta - vagrant
Grey-headed albatross, Thalassarche chrysostoma - breeding, endangered
Black-browed albatross, Thalassarche melanophris - breeding, endangered
Royal albatross, Diomedea epomophora - vagrant
Wandering albatross, Diomedea exulans - breeding, critically endangered
Sooty albatross, Phoebetria fusca - vagrant
Light-mantled sooty albatross, Phoebetria palpebrata – breeding, vulnerable
Hydrobatidae
Grey-backed storm petrel, Garrodia nereis - possibly breeding, endangered
Wilson's storm petrel, Oceanites oceanicus - possibly breeding, vulnerable
Phalacrocoracidae
Great cormorant, Phalacrocorax carbo - vagrant
Macquarie shag, Phalacrocorax purpurascens - endemic species, vulnerable
Sulidae
Australasian gannet, Morus serrator – vagrant
Ardeidae
Great egret, Ardea alba - vagrant
Cattle egret, Ardea ibis - vagrant
Little egret, Egretta garzetta - vagrant
White-faced heron, Egretta novaehollandiae - vagrant
Nankeen night heron, Nycticorax caledonicus – vagrant
Threskiornithidae
Glossy ibis, Plegadis falcinellus – vagrant
Accipitridae
Swamp harrier, Circus approximans – vagrant
Rallidae
Eurasian coot, Fulica atra - vagrant
Weka, Gallirallus australis - introduced, extinct
Macquarie rail, Gallirallus philippensis macquariensis - endemic subspecies, extinct
Baillon's crake, Porzana pusilla – vagrant
Scolopacidae
Ruddy turnstone, Arenaria interpres - vagrant
Red knot, Calidris canutus - vagrant
Red-necked stint, Calidris ruficollis - vagrant
Latham's snipe, Gallinago hardwickii - vagrant
Bar-tailed godwit, Limosa lapponica - vagrant
Red-necked phalarope, Phalaropus lobatus - vagrant
Common greenshank, Tringa nebularia – vagrant
Recurvirostridae
Black-winged stilt, Himantopus himantopus – vagrant
Charadriidae
Grey plover, Pluvialis squatarola - vagrant
Masked lapwing, Vanellus miles – vagrant
Laridae
Great skua, Catharacta skua - breeding
Kelp gull, Larus dominicanus - breeding
Silver gull, Chroicocephalus novaehollandiae - vagrant
Arctic tern, Sterna paradisaea - vagrant
Antarctic tern, Sterna vittata – breeding, endangered
Psittacidae
Macquarie parakeet, Cyanoramphus erythrotis - endemic species, extinct
Apodidae
Pacific swift, Apus pacificus - vagrant
White-throated needletail, Hirundapus caudacutus – vagrant
Fringillidae
European goldfinch, Carduelis carduelis - vagrant
Common redpoll, Acanthis flammea - breeding
Common chaffinch, Fringilla coelebs – vagrant
Emberizidae
Yellowhammer, Emberiza citrinella – vagrant
Hirundinidae
Welcome swallow, Hirundo neoxena – vagrant
Zosteropidae
Silvereye, Zosterops lateralis – vagrant
Turdidae
Common blackbird, Turdus merula - vagrant
Song thrush, Turdus philomelos – vagrant
Sturnidae
Common starling, Sturnus vulgaris - breeding