Cuculiformes (Anis, Couas, Cuckoos, Ground-Cuckoos etc.)
Family: Cuculidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cacomantis flabelliformis ssp. nov. 'Tonga' | - | Holocene? | Lifuka & 'Uiha, Tonga | Extinct | Access | |
| Carpococcyx viridis | Salvadori, 1879 | Sumatran ground-cuckoo, Sumatran ground cuckoo | - | Sumatra, Indonesia | Rediscovered | Access |
| Centropus colossus | Baird, 1985 | Colossal cuckoo | Late Pleistocene | South Australia (south-eastern), Australia | Extinct | Access |
| Centropus phasianinus mui | Mason, McKean & Dudzinski, 1984 | Timor pheasant coucal | - | Timor, Indonesia | Rediscovered | Access |
| Centropus toulou assumptionis | Nicoll, 1906 | Assumption Island coucal | 1906 | Assumption Island, Seychelles | Extinct | Access |
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Coua berthae
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Goodman & Ravoavy, 1993 | Bertha’s coua | ? | Madagascar | Extinct | Access |
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| Coua cristata maxima | Milon, 1950 | Large crested coua | ? | Madagascar | Extinct | Access |
| Coua delalandei | Temminck, 1827 | Delalande’s coua, Snail-eating coua, Delande's Madagascar coucal, Delande's coucal | 1834 | Ile Sainte Marie (=Nosy Boraha), Madagascar | Extinct | Access |
| Coua primaeva | Milne-Edwards & Grandidier, 1895 | Ancient coua | ? | Madagascar | Extinct | Access |
| Crotophaga sulcirostris pallidula | Bangs and Pernard, 1921 | Los Cabos groove-billed ani, Cabo San Lucas groove-billed ani | pre-1922 | Baja California, Mexico | Missing | Access |
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Eudynamys sp. 'Henderson Island'
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- | Henderson (Island) cuckoo/koel | Holocene? | Henderson Island, Pitcairn Islands | Extinct | Access |
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| Geococcyx californianus conklingi | Howard, 1931 | Conkling's roadrunner, Conkling's greater roadrunner | Holocene | New Mexico & Texas, USA and Mexico | Extinct | Access |
| Nannococcyx psix | Olson, 1975 | St. Helena cuckoo | Holocene | St. Helena | Extinct | Access |
| Neomorphus geoffroyi dulcis | Snethlage, 1927 | Southeastern rufous-vented ground-cuckoo, Sthnelage's ground-cuckoo | (rediscovered) | Brazil | Rediscovered | Access |
| Pachycoccyx audeberti audeberti | (Schlegel, 1879) | Thick-billed cuckoo | (rediscovered) | Madagascar | Rediscovered | Access |
| "Levaillant’s Black Coucal" | - | Levaillant’s black coucal | pre-1807? | South Africa | Hypothetical | Access |