Confused pairs
Incorrect answers between two species (undirected). With a country selected, only mix-ups from games in that country are counted, and only pairs where both species are on that country's checklist are shown.
| Species A (lower id) | Species B (higher id) | Total wrong | A was target → picked B | B was target → picked A |
|---|---|---|---|---|
| Snowy Albatross Diomedea exulans | Antipodean Albatross Diomedea antipodensis | 9 | 6 | 3 |
| Grey-headed Albatross Thalassarche chrysostoma | Buller's Albatross Thalassarche bulleri | 7 | 5 | 2 |
| Sooty Albatross Phoebetria fusca | Light-mantled Albatross Phoebetria palpebrata | 6 | 3 | 3 |
| North Island Robin Petroica longipes | South Island Robin Petroica australis | 5 | 3 | 2 |
| Auckland Islands Shag Leucocarbo colensoi | Campbell Islands Shag Leucocarbo campbelli | 5 | 2 | 3 |
| Northern Royal Albatross Diomedea sanfordi | Southern Royal Albatross Diomedea epomophora | 5 | 3 | 2 |
| Yellow-crowned Parakeet Cyanoramphus auriceps | Chatham Islands Parakeet Cyanoramphus forbesi | 5 | 0 | 5 |
| Black Robin Petroica traversi | North Island Robin Petroica longipes | 5 | 1 | 4 |
| White-capped Albatross Thalassarche cauta | Black-browed Albatross Thalassarche melanophris | 4 | 1 | 3 |
| Arctic Skua Stercorarius parasiticus | Pomarine Skua Stercorarius pomarinus | 4 | 3 | 1 |
| Chatham Islands Oystercatcher Haematopus chathamensis | Variable Oystercatcher Haematopus unicolor | 4 | 4 | 0 |
| Cook's Petrel Pterodroma cookii | Blue Petrel Halobaena caerulea | 4 | 2 | 2 |
| Erect-crested Penguin Eudyptes sclateri | Southern Rockhopper Penguin Eudyptes chrysocome | 4 | 2 | 2 |
| Rifleman Acanthisitta chloris | Bush Wren Xenicus longipes | 4 | 1 | 3 |
| Silver Gull Chroicocephalus novaehollandiae | Black-billed Gull Chroicocephalus bulleri | 4 | 1 | 3 |
| Southern Royal Albatross Diomedea epomophora | Antipodean Albatross Diomedea antipodensis | 4 | 0 | 4 |
| New Zealand Pigeon Hemiphaga novaeseelandiae | Chatham Islands Pigeon Hemiphaga chathamensis | 3 | 0 | 3 |
| Kerguelen Petrel Aphrodroma brevirostris | Kermadec Petrel Pterodroma neglecta | 3 | 2 | 1 |
| New Zealand Fernbird Poodytes punctatus | New Zealand Pipit Anthus novaeseelandiae | 3 | 1 | 2 |
| White-capped Albatross Thalassarche cauta | Salvin's Albatross Thalassarche salvini | 3 | 2 | 1 |
| Red-crowned Parakeet Cyanoramphus novaezelandiae | Reischek's Parakeet Cyanoramphus hochstetteri | 3 | 0 | 3 |
| Southern Royal Albatross Diomedea epomophora | Snowy Albatross Diomedea exulans | 3 | 3 | 0 |
| Bush Wren Xenicus longipes | South Island Wren Xenicus gilviventris | 3 | 3 | 0 |
| Fairy Prion Pachyptila turtur | Fluttering Shearwater Puffinus gavia | 3 | 1 | 2 |
| North Island Brown Kiwi Apteryx mantelli | Great Spotted Kiwi Apteryx maxima | 3 | 1 | 2 |
| Antarctic Prion Pachyptila desolata | Fluttering Shearwater Puffinus gavia | 3 | 2 | 1 |
| Bounty Islands Shag Leucocarbo ranfurlyi | New Zealand King Shag Leucocarbo carunculatus | 3 | 3 | 0 |
| Atlantic Yellow-nosed Albatross Thalassarche chlororhynchos | Buller's Albatross Thalassarche bulleri | 3 | 3 | 0 |
| Soft-plumaged Petrel Pterodroma mollis | White-headed Petrel Pterodroma lessonii | 3 | 1 | 2 |
| Pacific Black Duck Anas superciliosa | Grey Teal Anas gracilis | 3 | 1 | 2 |
| Indian Yellow-nosed Albatross Thalassarche carteri | Buller's Albatross Thalassarche bulleri | 3 | 1 | 2 |
| Bounty Islands Shag Leucocarbo ranfurlyi | Auckland Islands Shag Leucocarbo colensoi | 3 | 1 | 2 |
| Kermadec Petrel Pterodroma neglecta | Soft-plumaged Petrel Pterodroma mollis | 3 | 0 | 3 |
| Black Noddy Anous minutus | Sooty Tern Onychoprion fuscatus | 3 | 1 | 2 |
| White-faced Storm-Petrel Pelagodroma marina | White-bellied Storm-Petrel Fregetta grallaria | 3 | 3 | 0 |
| Pied Cormorant Phalacrocorax varius | Auckland Islands Shag Leucocarbo colensoi | 3 | 0 | 3 |
| Parkinson's Petrel Procellaria parkinsoni | Wedge-tailed Shearwater Ardenna pacifica | 2 | 2 | 0 |
| Auckland Islands Teal Anas aucklandica | New Zealand Scaup Aythya novaeseelandiae | 2 | 2 | 0 |
| Long-tailed Koel Urodynamis taitensis | Shining Bronze-Cuckoo Chalcites lucidus | 2 | 2 | 0 |
| Whitehead Mohoua albicilla | Yellowhead Mohoua ochrocephala | 2 | 0 | 2 |
| Whitehead Mohoua albicilla | Pipipi Mohoua novaeseelandiae | 2 | 2 | 0 |
| Arctic Skua Stercorarius parasiticus | Brown Skua Stercorarius antarcticus | 2 | 2 | 0 |
| Adelie Penguin Pygoscelis adeliae | Chinstrap Penguin Pygoscelis antarcticus | 2 | 0 | 2 |
| Sooty Shearwater Ardenna grisea | Short-tailed Shearwater Ardenna tenuirostris | 2 | 1 | 1 |
| Atlantic Yellow-nosed Albatross Thalassarche chlororhynchos | Indian Yellow-nosed Albatross Thalassarche carteri | 2 | 1 | 1 |
| New Zealand Fantail Rhipidura fuliginosa | Black Robin Petroica traversi | 2 | 1 | 1 |
| Sooty Shearwater Ardenna grisea | Fluttering Shearwater Puffinus gavia | 2 | 1 | 1 |
| Short-tailed Shearwater Ardenna tenuirostris | Little Shearwater Puffinus assimilis | 2 | 1 | 1 |
| Fiordland Penguin Eudyptes pachyrhynchus | Southern Rockhopper Penguin Eudyptes chrysocome | 2 | 2 | 0 |
| Fiordland Penguin Eudyptes pachyrhynchus | Snares Penguin Eudyptes robustus | 2 | 0 | 2 |
| Grey-headed Albatross Thalassarche chrysostoma | White-capped Albatross Thalassarche cauta | 2 | 0 | 2 |
| Tomtit Petroica macrocephala | Black Robin Petroica traversi | 2 | 1 | 1 |
| Grey-headed Albatross Thalassarche chrysostoma | Chatham Albatross Thalassarche eremita | 2 | 1 | 1 |
| Tomtit Petroica macrocephala | South Island Robin Petroica australis | 2 | 1 | 1 |
| White-headed Petrel Pterodroma lessonii | Fluttering Shearwater Puffinus gavia | 2 | 0 | 2 |
| Hudsonian Godwit Limosa haemastica | Red Knot Calidris canutus | 2 | 1 | 1 |
| Fluttering Shearwater Puffinus gavia | Campbell Islands Shag Leucocarbo campbelli | 2 | 0 | 2 |
| Lesser Frigatebird Fregata ariel | Great Frigatebird Fregata minor | 2 | 1 | 1 |
| Welcome Swallow Hirundo neoxena | Silvereye Zosterops lateralis | 2 | 1 | 1 |
| Silvereye Zosterops lateralis | New Zealand Pipit Anthus novaeseelandiae | 2 | 1 | 1 |
| White-necked Petrel Pterodroma cervicalis | Cook's Petrel Pterodroma cookii | 2 | 2 | 0 |
| Salvin's Albatross Thalassarche salvini | Chatham Albatross Thalassarche eremita | 2 | 1 | 1 |
| Erect-crested Penguin Eudyptes sclateri | Snares Penguin Eudyptes robustus | 2 | 1 | 1 |
| Little Pied Cormorant Microcarbo melanoleucos | Great Cormorant Phalacrocorax carbo | 2 | 2 | 0 |
| Shining Bronze-Cuckoo Chalcites lucidus | Little Bronze-Cuckoo Chalcites minutillus | 2 | 1 | 1 |
| Macaroni Penguin Eudyptes chrysolophus | Royal Penguin Eudyptes schlegeli | 2 | 0 | 2 |
| New Zealand Grebe Poliocephalus rufopectus | Great Crested Grebe Podiceps cristatus | 2 | 2 | 0 |
| Chatham Islands Snipe Coenocorypha pusilla | Snares Snipe Coenocorypha huegeli | 2 | 0 | 2 |
| Great Cormorant Phalacrocorax carbo | Pitt Island Shag Phalacrocorax featherstoni | 2 | 0 | 2 |
| Little Spotted Kiwi Apteryx owenii | Great Spotted Kiwi Apteryx maxima | 2 | 1 | 1 |
| Spotted Shag Phalacrocorax punctatus | Pitt Island Shag Phalacrocorax featherstoni | 2 | 2 | 0 |
| Pitt Island Shag Phalacrocorax featherstoni | Bounty Islands Shag Leucocarbo ranfurlyi | 2 | 2 | 0 |
| Subantarctic Snipe Coenocorypha aucklandica | Latham's Snipe Gallinago hardwickii | 2 | 0 | 2 |
| Double-banded Plover Anarhynchus bicinctus | Red-breasted Dotterel Anarhynchus obscurus | 2 | 1 | 1 |
| Pycroft's Petrel Pterodroma pycrofti | Fairy Prion Pachyptila turtur | 2 | 2 | 0 |
| White-faced Storm-Petrel Pelagodroma marina | New Zealand Storm-Petrel Fregetta maoriana | 2 | 1 | 1 |
| Stewart Island Shag Leucocarbo chalconotus | Chatham Islands Shag Leucocarbo onslowi | 2 | 2 | 0 |
| Stewart Island Shag Leucocarbo chalconotus | Campbell Islands Shag Leucocarbo campbelli | 2 | 0 | 2 |
| Black-fronted Tern Chlidonias albostriatus | White-winged Black Tern Chlidonias leucopterus | 2 | 1 | 1 |
| Fairy Prion Pachyptila turtur | Sooty Shearwater Ardenna grisea | 2 | 1 | 1 |
| White-bellied Storm-Petrel Fregetta grallaria | New Zealand Storm-Petrel Fregetta maoriana | 2 | 1 | 1 |
| New Zealand Storm-Petrel Fregetta maoriana | Black-bellied Storm-Petrel Fregetta tropica | 2 | 0 | 2 |
| Antipodes Parakeet Cyanoramphus unicolor | Yellow-crowned Parakeet Cyanoramphus auriceps | 2 | 1 | 1 |
| Grey Plover Pluvialis squatarola | Shore Plover Thinornis novaeseelandiae | 2 | 2 | 0 |
| Okarito Brown Kiwi Apteryx rowi | Little Spotted Kiwi Apteryx owenii | 2 | 2 | 0 |
| Rifleman Acanthisitta chloris | South Island Wren Xenicus gilviventris | 2 | 1 | 1 |
| Northern Giant-Petrel Macronectes halli | Grey-faced Petrel Pterodroma gouldi | 2 | 2 | 0 |
| Antarctic Prion Pachyptila desolata | Slender-billed Prion Pachyptila belcheri | 2 | 1 | 1 |
| Antarctic Prion Pachyptila desolata | Buller's Shearwater Ardenna bulleri | 2 | 0 | 2 |
| Southern Fulmar Fulmarus glacialoides | Kerguelen Petrel Aphrodroma brevirostris | 2 | 0 | 2 |
| Slender-billed Prion Pachyptila belcheri | Fulmar Prion Pachyptila crassirostris | 2 | 2 | 0 |
| Shore Plover Thinornis novaeseelandiae | Masked Lapwing Vanellus miles | 2 | 1 | 1 |
| Grey Petrel Procellaria cinerea | White-chinned Petrel Procellaria aequinoctialis | 2 | 1 | 1 |
| New Zealand Bellbird Anthornis melanura | Chatham Islands Gerygone Gerygone albofrontata | 2 | 1 | 1 |
| Antarctic Petrel Thalassoica antarctica | Pintado Petrel Daption capense | 2 | 0 | 2 |
| Southern Rockhopper Penguin Eudyptes chrysocome | Fluttering Shearwater Puffinus gavia | 1 | 1 | 0 |
| Southern Rockhopper Penguin Eudyptes chrysocome | New Zealand Pipit Anthus novaeseelandiae | 1 | 0 | 1 |
| Moseley's Rockhopper Penguin Eudyptes moseleyi | Snares Penguin Eudyptes robustus | 1 | 1 | 0 |
| Snares Penguin Eudyptes robustus | Parkinson's Petrel Procellaria parkinsoni | 1 | 0 | 1 |
| Northern Royal Albatross Diomedea sanfordi | Antipodean Albatross Diomedea antipodensis | 1 | 0 | 1 |
| Northern Royal Albatross Diomedea sanfordi | Sooty Albatross Phoebetria fusca | 1 | 1 | 0 |
| Northern Royal Albatross Diomedea sanfordi | Light-mantled Albatross Phoebetria palpebrata | 1 | 1 | 0 |
| Southern Royal Albatross Diomedea epomophora | Buller's Albatross Thalassarche bulleri | 1 | 0 | 1 |
| Southern Royal Albatross Diomedea epomophora | White-capped Albatross Thalassarche cauta | 1 | 0 | 1 |
| Snowy Albatross Diomedea exulans | Light-mantled Albatross Phoebetria palpebrata | 1 | 1 | 0 |
| Laysan Albatross Phoebastria immutabilis | Buller's Albatross Thalassarche bulleri | 1 | 0 | 1 |
| Laysan Albatross Phoebastria immutabilis | White-capped Albatross Thalassarche cauta | 1 | 1 | 0 |
| Sooty Albatross Phoebetria fusca | Wedge-tailed Shearwater Ardenna pacifica | 1 | 1 | 0 |
| Light-mantled Albatross Phoebetria palpebrata | Indian Yellow-nosed Albatross Thalassarche carteri | 1 | 1 | 0 |
| Light-mantled Albatross Phoebetria palpebrata | Grey-headed Albatross Thalassarche chrysostoma | 1 | 1 | 0 |
| Atlantic Yellow-nosed Albatross Thalassarche chlororhynchos | Grey-headed Albatross Thalassarche chrysostoma | 1 | 1 | 0 |
| Atlantic Yellow-nosed Albatross Thalassarche chlororhynchos | White-capped Albatross Thalassarche cauta | 1 | 1 | 0 |
| Indian Yellow-nosed Albatross Thalassarche carteri | White-capped Albatross Thalassarche cauta | 1 | 1 | 0 |
| Indian Yellow-nosed Albatross Thalassarche carteri | Fulmar Prion Pachyptila crassirostris | 1 | 0 | 1 |
| Buller's Albatross Thalassarche bulleri | White-capped Albatross Thalassarche cauta | 1 | 1 | 0 |
| Buller's Albatross Thalassarche bulleri | Chatham Albatross Thalassarche eremita | 1 | 1 | 0 |
| Buller's Albatross Thalassarche bulleri | Black-browed Albatross Thalassarche melanophris | 1 | 0 | 1 |
| Salvin's Albatross Thalassarche salvini | Black-browed Albatross Thalassarche melanophris | 1 | 0 | 1 |
| Salvin's Albatross Thalassarche salvini | White-chinned Petrel Procellaria aequinoctialis | 1 | 1 | 0 |
| Salvin's Albatross Thalassarche salvini | Sooty Shearwater Ardenna grisea | 1 | 1 | 0 |
| Chatham Albatross Thalassarche eremita | Black-browed Albatross Thalassarche melanophris | 1 | 0 | 1 |
| Chatham Albatross Thalassarche eremita | New Zealand Storm-Petrel Fregetta maoriana | 1 | 0 | 1 |
| Black-browed Albatross Thalassarche melanophris | Black-bellied Storm-Petrel Fregetta tropica | 1 | 0 | 1 |
| Black-browed Albatross Thalassarche melanophris | Pied Cormorant Phalacrocorax varius | 1 | 1 | 0 |
| Grey-backed Storm-Petrel Garrodia nereis | White-bellied Storm-Petrel Fregetta grallaria | 1 | 0 | 1 |
| Grey-backed Storm-Petrel Garrodia nereis | Fluttering Shearwater Puffinus gavia | 1 | 0 | 1 |
| White-faced Storm-Petrel Pelagodroma marina | Black-bellied Storm-Petrel Fregetta tropica | 1 | 0 | 1 |
| White-faced Storm-Petrel Pelagodroma marina | Salvin's Prion Pachyptila salvini | 1 | 0 | 1 |
| Southern Giant-Petrel Macronectes giganteus | Northern Giant-Petrel Macronectes halli | 1 | 0 | 1 |
| Northern Giant-Petrel Macronectes halli | Southern Fulmar Fulmarus glacialoides | 1 | 1 | 0 |
| Northern Giant-Petrel Macronectes halli | Pintado Petrel Daption capense | 1 | 0 | 1 |
| Southern Fulmar Fulmarus glacialoides | Pintado Petrel Daption capense | 1 | 0 | 1 |
| Southern Fulmar Fulmarus glacialoides | Kermadec Petrel Pterodroma neglecta | 1 | 1 | 0 |
| Southern Fulmar Fulmarus glacialoides | Westland Petrel Procellaria westlandica | 1 | 0 | 1 |
| Pintado Petrel Daption capense | Kermadec Petrel Pterodroma neglecta | 1 | 1 | 0 |
| Kerguelen Petrel Aphrodroma brevirostris | Grey-faced Petrel Pterodroma gouldi | 1 | 0 | 1 |
| Grey-faced Petrel Pterodroma gouldi | Magenta Petrel Pterodroma magentae | 1 | 0 | 1 |
| Grey-faced Petrel Pterodroma gouldi | Blue Petrel Halobaena caerulea | 1 | 0 | 1 |
| Kermadec Petrel Pterodroma neglecta | White-headed Petrel Pterodroma lessonii | 1 | 1 | 0 |
| Magenta Petrel Pterodroma magentae | Herald Petrel Pterodroma heraldica | 1 | 0 | 1 |
| Magenta Petrel Pterodroma magentae | Providence Petrel Pterodroma solandri | 1 | 0 | 1 |
| Magenta Petrel Pterodroma magentae | Soft-plumaged Petrel Pterodroma mollis | 1 | 0 | 1 |
| Magenta Petrel Pterodroma magentae | Wedge-tailed Shearwater Ardenna pacifica | 1 | 1 | 0 |
| Herald Petrel Pterodroma heraldica | Providence Petrel Pterodroma solandri | 1 | 1 | 0 |
| Herald Petrel Pterodroma heraldica | White-headed Petrel Pterodroma lessonii | 1 | 1 | 0 |
| Soft-plumaged Petrel Pterodroma mollis | Parkinson's Petrel Procellaria parkinsoni | 1 | 1 | 0 |
| Soft-plumaged Petrel Pterodroma mollis | Short-tailed Shearwater Ardenna tenuirostris | 1 | 1 | 0 |
| White-headed Petrel Pterodroma lessonii | White-necked Petrel Pterodroma cervicalis | 1 | 1 | 0 |
| White-headed Petrel Pterodroma lessonii | Black-winged Petrel Pterodroma nigripennis | 1 | 1 | 0 |
| White-headed Petrel Pterodroma lessonii | Fairy Prion Pachyptila turtur | 1 | 1 | 0 |
| White-headed Petrel Pterodroma lessonii | Flesh-footed Shearwater Ardenna carneipes | 1 | 1 | 0 |
| White-headed Petrel Pterodroma lessonii | Sooty Shearwater Ardenna grisea | 1 | 1 | 0 |
| White-headed Petrel Pterodroma lessonii | Chatham Islands Shag Leucocarbo onslowi | 1 | 1 | 0 |
| Mottled Petrel Pterodroma inexpectata | Black-winged Petrel Pterodroma nigripennis | 1 | 1 | 0 |
| Juan Fernandez Petrel Pterodroma externa | Black-winged Petrel Pterodroma nigripennis | 1 | 1 | 0 |
| White-necked Petrel Pterodroma cervicalis | Black-winged Petrel Pterodroma nigripennis | 1 | 1 | 0 |
| White-necked Petrel Pterodroma cervicalis | Chatham Islands Petrel Pterodroma axillaris | 1 | 0 | 1 |
| White-necked Petrel Pterodroma cervicalis | Fluttering Shearwater Puffinus gavia | 1 | 1 | 0 |
| Black-winged Petrel Pterodroma nigripennis | Gould's Petrel Pterodroma leucoptera | 1 | 1 | 0 |
| Black-winged Petrel Pterodroma nigripennis | Buller's Shearwater Ardenna bulleri | 1 | 1 | 0 |
| Chatham Islands Petrel Pterodroma axillaris | Cook's Petrel Pterodroma cookii | 1 | 1 | 0 |
| Chatham Islands Petrel Pterodroma axillaris | Westland Petrel Procellaria westlandica | 1 | 0 | 1 |
| Chatham Islands Petrel Pterodroma axillaris | New Zealand Falcon Falco novaeseelandiae | 1 | 1 | 0 |
| Cook's Petrel Pterodroma cookii | Stejneger's Petrel Pterodroma longirostris | 1 | 1 | 0 |
| Cook's Petrel Pterodroma cookii | Pycroft's Petrel Pterodroma pycrofti | 1 | 0 | 1 |
| Gould's Petrel Pterodroma leucoptera | Collared Petrel Pterodroma brevipes | 1 | 0 | 1 |
| Stejneger's Petrel Pterodroma longirostris | Pycroft's Petrel Pterodroma pycrofti | 1 | 1 | 0 |
| Pycroft's Petrel Pterodroma pycrofti | Blue Petrel Halobaena caerulea | 1 | 1 | 0 |
| Blue Petrel Halobaena caerulea | Fairy Prion Pachyptila turtur | 1 | 0 | 1 |
| Fairy Prion Pachyptila turtur | Broad-billed Prion Pachyptila vittata | 1 | 0 | 1 |
| Fairy Prion Pachyptila turtur | Fulmar Prion Pachyptila crassirostris | 1 | 0 | 1 |
| Fairy Prion Pachyptila turtur | Brown Booby Sula leucogaster | 1 | 1 | 0 |
| Fairy Prion Pachyptila turtur | Campbell Islands Shag Leucocarbo campbelli | 1 | 1 | 0 |
| Fairy Prion Pachyptila turtur | Silvereye Zosterops lateralis | 1 | 0 | 1 |
| Broad-billed Prion Pachyptila vittata | Antarctic Prion Pachyptila desolata | 1 | 0 | 1 |
| Salvin's Prion Pachyptila salvini | Slender-billed Prion Pachyptila belcheri | 1 | 0 | 1 |
| Salvin's Prion Pachyptila salvini | Fulmar Prion Pachyptila crassirostris | 1 | 1 | 0 |
| Antarctic Prion Pachyptila desolata | Sooty Shearwater Ardenna grisea | 1 | 0 | 1 |
| Antarctic Prion Pachyptila desolata | Grey Gerygone Gerygone igata | 1 | 1 | 0 |
| Fulmar Prion Pachyptila crassirostris | White-chinned Petrel Procellaria aequinoctialis | 1 | 1 | 0 |
| Grey Petrel Procellaria cinerea | Common Diving-Petrel Pelecanoides urinatrix | 1 | 1 | 0 |
| White-chinned Petrel Procellaria aequinoctialis | Westland Petrel Procellaria westlandica | 1 | 1 | 0 |
| White-chinned Petrel Procellaria aequinoctialis | Masked Booby Sula dactylatra | 1 | 1 | 0 |
| Westland Petrel Procellaria westlandica | Flesh-footed Shearwater Ardenna carneipes | 1 | 0 | 1 |
| Great Shearwater Ardenna gravis | Hutton's Shearwater Puffinus huttoni | 1 | 0 | 1 |
| Wedge-tailed Shearwater Ardenna pacifica | Buller's Shearwater Ardenna bulleri | 1 | 0 | 1 |
| Wedge-tailed Shearwater Ardenna pacifica | Sooty Shearwater Ardenna grisea | 1 | 1 | 0 |
| Wedge-tailed Shearwater Ardenna pacifica | Pied Cormorant Phalacrocorax varius | 1 | 1 | 0 |
| Buller's Shearwater Ardenna bulleri | Sooty Shearwater Ardenna grisea | 1 | 1 | 0 |
| Buller's Shearwater Ardenna bulleri | Hutton's Shearwater Puffinus huttoni | 1 | 1 | 0 |
| Buller's Shearwater Ardenna bulleri | Campbell Islands Shag Leucocarbo campbelli | 1 | 1 | 0 |
| Buller's Shearwater Ardenna bulleri | Grey Gerygone Gerygone igata | 1 | 1 | 0 |
| Sooty Shearwater Ardenna grisea | Christmas Shearwater Puffinus nativitatis | 1 | 0 | 1 |
| Sooty Shearwater Ardenna grisea | Hutton's Shearwater Puffinus huttoni | 1 | 0 | 1 |
| Sooty Shearwater Ardenna grisea | Campbell Islands Shag Leucocarbo campbelli | 1 | 0 | 1 |
| Short-tailed Shearwater Ardenna tenuirostris | Christmas Shearwater Puffinus nativitatis | 1 | 0 | 1 |
| Short-tailed Shearwater Ardenna tenuirostris | Hutton's Shearwater Puffinus huttoni | 1 | 1 | 0 |
| Short-tailed Shearwater Ardenna tenuirostris | Fluttering Shearwater Puffinus gavia | 1 | 0 | 1 |
| Christmas Shearwater Puffinus nativitatis | Hutton's Shearwater Puffinus huttoni | 1 | 0 | 1 |
| Hutton's Shearwater Puffinus huttoni | Fluttering Shearwater Puffinus gavia | 1 | 0 | 1 |
| Hutton's Shearwater Puffinus huttoni | Little Shearwater Puffinus assimilis | 1 | 0 | 1 |
| Hutton's Shearwater Puffinus huttoni | South Georgia Diving-Petrel Pelecanoides georgicus | 1 | 0 | 1 |
| Fluttering Shearwater Puffinus gavia | Little Shearwater Puffinus assimilis | 1 | 0 | 1 |
| Fluttering Shearwater Puffinus gavia | Subantarctic Shearwater Puffinus elegans | 1 | 0 | 1 |
| Fluttering Shearwater Puffinus gavia | Common Diving-Petrel Pelecanoides urinatrix | 1 | 1 | 0 |
| Little Shearwater Puffinus assimilis | Common Diving-Petrel Pelecanoides urinatrix | 1 | 0 | 1 |
| Great Frigatebird Fregata minor | Australasian Gannet Morus serrator | 1 | 1 | 0 |
| Australasian Gannet Morus serrator | Brown Booby Sula leucogaster | 1 | 0 | 1 |
| Australasian Gannet Morus serrator | Great Cormorant Phalacrocorax carbo | 1 | 1 | 0 |
| Brown Booby Sula leucogaster | Masked Booby Sula dactylatra | 1 | 1 | 0 |
| Brown Booby Sula leucogaster | Spotted Shag Phalacrocorax punctatus | 1 | 1 | 0 |
| Masked Booby Sula dactylatra | Great Cormorant Phalacrocorax carbo | 1 | 1 | 0 |
| Little Pied Cormorant Microcarbo melanoleucos | Pitt Island Shag Phalacrocorax featherstoni | 1 | 1 | 0 |
| Little Pied Cormorant Microcarbo melanoleucos | Little Black Cormorant Phalacrocorax sulcirostris | 1 | 1 | 0 |
| Little Pied Cormorant Microcarbo melanoleucos | Pied Cormorant Phalacrocorax varius | 1 | 1 | 0 |
| Great Cormorant Phalacrocorax carbo | Spotted Shag Phalacrocorax punctatus | 1 | 0 | 1 |
| Great Cormorant Phalacrocorax carbo | Little Black Cormorant Phalacrocorax sulcirostris | 1 | 0 | 1 |
| Pitt Island Shag Phalacrocorax featherstoni | Little Black Cormorant Phalacrocorax sulcirostris | 1 | 1 | 0 |
| Pitt Island Shag Phalacrocorax featherstoni | Pied Cormorant Phalacrocorax varius | 1 | 1 | 0 |
| Little Black Cormorant Phalacrocorax sulcirostris | Bounty Islands Shag Leucocarbo ranfurlyi | 1 | 0 | 1 |
| Pied Cormorant Phalacrocorax varius | Stewart Island Shag Leucocarbo chalconotus | 1 | 1 | 0 |
| Pied Cormorant Phalacrocorax varius | Chatham Islands Shag Leucocarbo onslowi | 1 | 0 | 1 |
| Pied Cormorant Phalacrocorax varius | Campbell Islands Shag Leucocarbo campbelli | 1 | 0 | 1 |
| Pied Cormorant Phalacrocorax varius | Great White Egret Ardea alba | 1 | 1 | 0 |
| Bounty Islands Shag Leucocarbo ranfurlyi | Stewart Island Shag Leucocarbo chalconotus | 1 | 1 | 0 |
| Australasian Bittern Botaurus poiciloptilus | Black-backed Bittern Botaurus dubius | 1 | 0 | 1 |
| White-faced Heron Egretta novaehollandiae | Royal Spoonbill Platalea regia | 1 | 1 | 0 |
| Great White Egret Ardea alba | Plumed Egret Ardea plumifera | 1 | 0 | 1 |
| Morepork Ninox novaeseelandiae | New Zealand Bellbird Anthornis melanura | 1 | 0 | 1 |
| Antipodes Parakeet Cyanoramphus unicolor | Reischek's Parakeet Cyanoramphus hochstetteri | 1 | 1 | 0 |
| Red-crowned Parakeet Cyanoramphus novaezelandiae | Yellow-crowned Parakeet Cyanoramphus auriceps | 1 | 0 | 1 |
| Reischek's Parakeet Cyanoramphus hochstetteri | Chatham Islands Parakeet Cyanoramphus forbesi | 1 | 1 | 0 |
| Rifleman Acanthisitta chloris | Whitehead Mohoua albicilla | 1 | 1 | 0 |
| Rifleman Acanthisitta chloris | Pipipi Mohoua novaeseelandiae | 1 | 0 | 1 |
| Rifleman Acanthisitta chloris | New Zealand Fantail Rhipidura fuliginosa | 1 | 1 | 0 |
| Bush Wren Xenicus longipes | New Zealand Bellbird Anthornis melanura | 1 | 0 | 1 |
| South Island Wren Xenicus gilviventris | Tui Prosthemadera novaeseelandiae | 1 | 0 | 1 |
| South Island Wren Xenicus gilviventris | New Zealand Bellbird Anthornis melanura | 1 | 1 | 0 |
| South Island Wren Xenicus gilviventris | Black Robin Petroica traversi | 1 | 0 | 1 |
| Tui Prosthemadera novaeseelandiae | Grey Gerygone Gerygone igata | 1 | 1 | 0 |
| Southern Brown Kiwi Apteryx australis | Shore Plover Thinornis novaeseelandiae | 1 | 1 | 0 |
| Tui Prosthemadera novaeseelandiae | South Island Kokako Callaeas cinereus | 1 | 0 | 1 |
| Tui Prosthemadera novaeseelandiae | Welcome Swallow Hirundo neoxena | 1 | 1 | 0 |
| New Zealand Bellbird Anthornis melanura | Whitehead Mohoua albicilla | 1 | 0 | 1 |
| New Zealand Bellbird Anthornis melanura | New Zealand Pipit Anthus novaeseelandiae | 1 | 0 | 1 |
| Grey Gerygone Gerygone igata | Chatham Islands Gerygone Gerygone albofrontata | 1 | 0 | 1 |
| Grey Gerygone Gerygone igata | White-winged Triller Lalage tricolor | 1 | 1 | 0 |
| Grey Gerygone Gerygone igata | Whitehead Mohoua albicilla | 1 | 0 | 1 |
| Grey Gerygone Gerygone igata | New Zealand Pipit Anthus novaeseelandiae | 1 | 1 | 0 |
| Chatham Islands Gerygone Gerygone albofrontata | Whitehead Mohoua albicilla | 1 | 1 | 0 |
| White-winged Triller Lalage tricolor | Pipipi Mohoua novaeseelandiae | 1 | 0 | 1 |
| Whitehead Mohoua albicilla | New Zealand Fantail Rhipidura fuliginosa | 1 | 1 | 0 |
| Yellowhead Mohoua ochrocephala | Pipipi Mohoua novaeseelandiae | 1 | 0 | 1 |
| Yellowhead Mohoua ochrocephala | North Island Robin Petroica longipes | 1 | 0 | 1 |
| Yellowhead Mohoua ochrocephala | New Zealand Pipit Anthus novaeseelandiae | 1 | 0 | 1 |
| Pipipi Mohoua novaeseelandiae | North Island Robin Petroica longipes | 1 | 1 | 0 |
| New Zealand Fantail Rhipidura fuliginosa | Huia Heteralocha acutirostris | 1 | 0 | 1 |
| New Zealand Fantail Rhipidura fuliginosa | Tomtit Petroica macrocephala | 1 | 0 | 1 |
| New Zealand Fantail Rhipidura fuliginosa | Welcome Swallow Hirundo neoxena | 1 | 1 | 0 |
| New Zealand Fantail Rhipidura fuliginosa | Silvereye Zosterops lateralis | 1 | 0 | 1 |
| Magpie-lark Grallina cyanoleuca | Satin Flycatcher Myiagra cyanoleuca | 1 | 0 | 1 |
| North Island Kokako Callaeas wilsoni | South Island Kokako Callaeas cinereus | 1 | 0 | 1 |
| North Island Kokako Callaeas wilsoni | North Island Saddleback Philesturnus rufusater | 1 | 1 | 0 |
| South Island Kokako Callaeas cinereus | Huia Heteralocha acutirostris | 1 | 0 | 1 |
| North Island Saddleback Philesturnus rufusater | South Island Saddleback Philesturnus carunculatus | 1 | 1 | 0 |
| Huia Heteralocha acutirostris | Tomtit Petroica macrocephala | 1 | 1 | 0 |
| Huia Heteralocha acutirostris | Black Robin Petroica traversi | 1 | 0 | 1 |
| Stitchbird Notiomystis cincta | Black Robin Petroica traversi | 1 | 0 | 1 |
| Tomtit Petroica macrocephala | North Island Robin Petroica longipes | 1 | 1 | 0 |
| Tomtit Petroica macrocephala | Silvereye Zosterops lateralis | 1 | 1 | 0 |
| Black Robin Petroica traversi | New Zealand Fernbird Poodytes punctatus | 1 | 1 | 0 |
| Black Robin Petroica traversi | New Zealand Pipit Anthus novaeseelandiae | 1 | 0 | 1 |
| North Island Robin Petroica longipes | Welcome Swallow Hirundo neoxena | 1 | 1 | 0 |
| Welcome Swallow Hirundo neoxena | Fairy Martin Petrochelidon ariel | 1 | 0 | 1 |
| Welcome Swallow Hirundo neoxena | Tree Martin Petrochelidon nigricans | 1 | 0 | 1 |
| Welcome Swallow Hirundo neoxena | New Zealand Pipit Anthus novaeseelandiae | 1 | 0 | 1 |
| Tui Prosthemadera novaeseelandiae | Chatham Islands Gerygone Gerygone albofrontata | 1 | 1 | 0 |
| Cape Barren Goose Cereopsis novaehollandiae | Maned Duck Chenonetta jubata | 1 | 0 | 1 |
| Paradise Shelduck Tadorna variegata | Blue Duck Hymenolaimus malacorhynchos | 1 | 0 | 1 |
| Paradise Shelduck Tadorna variegata | Grey Teal Anas gracilis | 1 | 1 | 0 |
| Paradise Shelduck Tadorna variegata | Morepork Ninox novaeseelandiae | 1 | 0 | 1 |
| Blue Duck Hymenolaimus malacorhynchos | Pacific Black Duck Anas superciliosa | 1 | 1 | 0 |
| Pacific Black Duck Anas superciliosa | Auckland Islands Teal Anas aucklandica | 1 | 1 | 0 |
| Pacific Black Duck Anas superciliosa | New Zealand Scaup Aythya novaeseelandiae | 1 | 0 | 1 |
| Grey Teal Anas gracilis | Auckland Islands Teal Anas aucklandica | 1 | 1 | 0 |
| Grey Teal Anas gracilis | Brown Teal Anas chlorotis | 1 | 1 | 0 |
| Grey Teal Anas gracilis | Buller's Shearwater Ardenna bulleri | 1 | 0 | 1 |
| Auckland Islands Teal Anas aucklandica | Brown Teal Anas chlorotis | 1 | 0 | 1 |
| Auckland Islands Teal Anas aucklandica | Kermadec Petrel Pterodroma neglecta | 1 | 0 | 1 |
| Hoary-headed Grebe Poliocephalus poliocephalus | New Zealand Grebe Poliocephalus rufopectus | 1 | 1 | 0 |
| New Zealand Grebe Poliocephalus rufopectus | Little Pied Cormorant Microcarbo melanoleucos | 1 | 1 | 0 |
| Great Crested Grebe Podiceps cristatus | Light-mantled Albatross Phoebetria palpebrata | 1 | 0 | 1 |
| Long-tailed Koel Urodynamis taitensis | Channel-billed Cuckoo Scythrops novaehollandiae | 1 | 0 | 1 |
| Long-tailed Koel Urodynamis taitensis | Baillon's Crake Zapornia pusilla | 1 | 1 | 0 |
| Channel-billed Cuckoo Scythrops novaehollandiae | Fan-tailed Cuckoo Cacomantis flabelliformis | 1 | 1 | 0 |
| Auckland Islands Rail Lewinia muelleri | Baillon's Crake Zapornia pusilla | 1 | 0 | 1 |
| Eurasian Coot Fulica atra | Baillon's Crake Zapornia pusilla | 1 | 1 | 0 |
| Grey Plover Pluvialis squatarola | Red-breasted Dotterel Anarhynchus obscurus | 1 | 1 | 0 |
| Shore Plover Thinornis novaeseelandiae | Double-banded Plover Anarhynchus bicinctus | 1 | 1 | 0 |
| Shore Plover Thinornis novaeseelandiae | Wrybill Anarhynchus frontalis | 1 | 1 | 0 |
| Shore Plover Thinornis novaeseelandiae | Red-breasted Dotterel Anarhynchus obscurus | 1 | 0 | 1 |
| Shore Plover Thinornis novaeseelandiae | Chatham Islands Petrel Pterodroma axillaris | 1 | 0 | 1 |
| Shore Plover Thinornis novaeseelandiae | Pied Cormorant Phalacrocorax varius | 1 | 1 | 0 |
| Masked Lapwing Vanellus miles | Double-banded Plover Anarhynchus bicinctus | 1 | 0 | 1 |
| Masked Lapwing Vanellus miles | Wrybill Anarhynchus frontalis | 1 | 0 | 1 |
| Siberian Sand Plover Anarhynchus mongolus | Greater Sand Plover Anarhynchus leschenaultii | 1 | 1 | 0 |
| Double-banded Plover Anarhynchus bicinctus | Wrybill Anarhynchus frontalis | 1 | 0 | 1 |
| Wrybill Anarhynchus frontalis | White-fronted Tern Sterna striata | 1 | 1 | 0 |
| Wrybill Anarhynchus frontalis | Wedge-tailed Shearwater Ardenna pacifica | 1 | 1 | 0 |
| Bar-tailed Godwit Limosa lapponica | Hudsonian Godwit Limosa haemastica | 1 | 0 | 1 |
| Bar-tailed Godwit Limosa lapponica | Ruddy Turnstone Arenaria interpres | 1 | 1 | 0 |
| Bar-tailed Godwit Limosa lapponica | Caspian Tern Hydroprogne caspia | 1 | 0 | 1 |
| Black-tailed Godwit Limosa limosa | Hudsonian Godwit Limosa haemastica | 1 | 0 | 1 |
| Hudsonian Godwit Limosa haemastica | Chatham Islands Snipe Coenocorypha pusilla | 1 | 1 | 0 |
| Hudsonian Godwit Limosa haemastica | Ruddy Turnstone Arenaria interpres | 1 | 0 | 1 |
| Hudsonian Godwit Limosa haemastica | Arctic Skua Stercorarius parasiticus | 1 | 0 | 1 |
| Hudsonian Godwit Limosa haemastica | Pipipi Mohoua novaeseelandiae | 1 | 1 | 0 |
| Snares Snipe Coenocorypha huegeli | Subantarctic Snipe Coenocorypha aucklandica | 1 | 1 | 0 |
| Snares Snipe Coenocorypha huegeli | Welcome Swallow Hirundo neoxena | 1 | 0 | 1 |
| Grey Phalarope Phalaropus fulicarius | Terek Sandpiper Xenus cinereus | 1 | 1 | 0 |
| Red-necked Phalarope Phalaropus lobatus | Terek Sandpiper Xenus cinereus | 1 | 1 | 0 |
| Common Sandpiper Actitis hypoleucos | Wandering Tattler Tringa incana | 1 | 0 | 1 |
| Broad-billed Sandpiper Calidris falcinellus | Least Sandpiper Calidris minutilla | 1 | 0 | 1 |
| Sharp-tailed Sandpiper Calidris acuminata | Long-toed Stint Calidris subminuta | 1 | 1 | 0 |
| Stilt Sandpiper Calidris himantopus | Long-toed Stint Calidris subminuta | 1 | 1 | 0 |
| Red-necked Stint Calidris ruficollis | Western Sandpiper Calidris mauri | 1 | 0 | 1 |
| Pomarine Skua Stercorarius pomarinus | Brown Skua Stercorarius antarcticus | 1 | 1 | 0 |
| Pomarine Skua Stercorarius pomarinus | Silver Gull Chroicocephalus novaehollandiae | 1 | 1 | 0 |
| Pomarine Skua Stercorarius pomarinus | Antarctic Tern Sterna vittata | 1 | 1 | 0 |
| Silver Gull Chroicocephalus novaehollandiae | Kelp Gull Larus dominicanus | 1 | 1 | 0 |
| Silver Gull Chroicocephalus novaehollandiae | White-fronted Tern Sterna striata | 1 | 0 | 1 |
| Silver Gull Chroicocephalus novaehollandiae | Sooty Shearwater Ardenna grisea | 1 | 0 | 1 |
| Black-billed Gull Chroicocephalus bulleri | Kelp Gull Larus dominicanus | 1 | 1 | 0 |
| Black-billed Gull Chroicocephalus bulleri | White Tern Gygis alba | 1 | 0 | 1 |
| Kelp Gull Larus dominicanus | Grey-faced Petrel Pterodroma gouldi | 1 | 0 | 1 |
| Kelp Gull Larus dominicanus | White-headed Petrel Pterodroma lessonii | 1 | 1 | 0 |
| Kelp Gull Larus dominicanus | Sooty Shearwater Ardenna grisea | 1 | 0 | 1 |
| White Tern Gygis alba | South Georgia Diving-Petrel Pelecanoides georgicus | 1 | 0 | 1 |
| Brown Noddy Anous stolidus | Black Noddy Anous minutus | 1 | 1 | 0 |
| Black Noddy Anous minutus | Caspian Tern Hydroprogne caspia | 1 | 1 | 0 |
| Black Noddy Anous minutus | Antarctic Tern Sterna vittata | 1 | 1 | 0 |
| Black Noddy Anous minutus | White-fronted Tern Sterna striata | 1 | 1 | 0 |
| Black Noddy Anous minutus | Black-winged Petrel Pterodroma nigripennis | 1 | 1 | 0 |
| Grey Noddy Anous albivitta | Bridled Tern Onychoprion anaethetus | 1 | 1 | 0 |
| Grey Noddy Anous albivitta | Caspian Tern Hydroprogne caspia | 1 | 1 | 0 |
| Grey Noddy Anous albivitta | White-faced Heron Egretta novaehollandiae | 1 | 1 | 0 |
| Sooty Tern Onychoprion fuscatus | Caspian Tern Hydroprogne caspia | 1 | 0 | 1 |
| Sooty Tern Onychoprion fuscatus | Black-fronted Tern Chlidonias albostriatus | 1 | 0 | 1 |
| Sooty Tern Onychoprion fuscatus | White-winged Black Tern Chlidonias leucopterus | 1 | 0 | 1 |
| Bridled Tern Onychoprion anaethetus | Grey-backed Tern Onychoprion lunatus | 1 | 0 | 1 |
| Australian Fairy Tern Sternula nereis | Australian Tern Gelochelidon macrotarsa | 1 | 1 | 0 |
| Australian Tern Gelochelidon macrotarsa | Whiskered Tern Chlidonias hybrida | 1 | 0 | 1 |
| Caspian Tern Hydroprogne caspia | Black-fronted Tern Chlidonias albostriatus | 1 | 0 | 1 |
| Caspian Tern Hydroprogne caspia | White-winged Black Tern Chlidonias leucopterus | 1 | 0 | 1 |
| Caspian Tern Hydroprogne caspia | Antarctic Tern Sterna vittata | 1 | 1 | 0 |
| Black-fronted Tern Chlidonias albostriatus | Antarctic Tern Sterna vittata | 1 | 0 | 1 |
| Antarctic Tern Sterna vittata | Grey-faced Petrel Pterodroma gouldi | 1 | 0 | 1 |
| White-fronted Tern Sterna striata | White-headed Petrel Pterodroma lessonii | 1 | 0 | 1 |
| White-fronted Tern Sterna striata | Fairy Prion Pachyptila turtur | 1 | 0 | 1 |
| White-fronted Tern Sterna striata | Hutton's Shearwater Puffinus huttoni | 1 | 0 | 1 |
| White-fronted Tern Sterna striata | New Zealand Fantail Rhipidura fuliginosa | 1 | 0 | 1 |
| White-tailed Tropicbird Phaethon lepturus | Red-tailed Tropicbird Phaethon rubricauda | 1 | 0 | 1 |
| Red-tailed Tropicbird Phaethon rubricauda | Slender-billed Prion Pachyptila belcheri | 1 | 1 | 0 |
| King Penguin Aptenodytes patagonicus | Emperor Penguin Aptenodytes forsteri | 1 | 1 | 0 |
| Little Penguin Eudyptula minor | Fiordland Penguin Eudyptes pachyrhynchus | 1 | 1 | 0 |
| Fiordland Penguin Eudyptes pachyrhynchus | Macaroni Penguin Eudyptes chrysolophus | 1 | 1 | 0 |
| Fiordland Penguin Eudyptes pachyrhynchus | Common Diving-Petrel Pelecanoides urinatrix | 1 | 1 | 0 |
| Erect-crested Penguin Eudyptes sclateri | Moseley's Rockhopper Penguin Eudyptes moseleyi | 1 | 0 | 1 |
| Erect-crested Penguin Eudyptes sclateri | Auckland Islands Shag Leucocarbo colensoi | 1 | 0 | 1 |
| Southern Rockhopper Penguin Eudyptes chrysocome | Snares Penguin Eudyptes robustus | 1 | 0 | 1 |
| Southern Rockhopper Penguin Eudyptes chrysocome | White-headed Petrel Pterodroma lessonii | 1 | 1 | 0 |