Extinct Birds starting with A:
- Aechmorhynchus - Aepyornis - Aepyornithidae - Aestrelata - agilis (Mullerornis) - alba (Notornis) - alba (Porphyrio) - albicilla (Clitonyx) - albifacies (Sceloglaux) - albifrons (Miro) - Alca - Alectroenas - Alopochen - alphonsi (Astur) - altus (Dinornis) - Amazona - americana (Meleagris) - americanus (Siphonorhis) - Anas - angustipluma (Chaetoptila) - anna (Ciridops) - Anomalopteryx - antiquus (Anomalopteryx) - antipodum (Palaeocorax) - Aphanapteryx - apicalis (Moho) - Apterornis - Aptornis - Ara - Ardea - Astur - ater (Dromaeus) - Athene - aucklandica (Nesonetta) - augusta (Amazona) - australis (Mergus) - australis (Miro)