- Acanthisittidae New Zealand wrens
- Acanthizidae Gerygones, Thornbills, Scrubwrens, and Allies
- Accipitridae Kites, Old World Vultures, Eagles, and Hawks
- Acrocephalidae Reed-Warblers and Allies
- Aegothelidae Owlet-nightjars
- Alaudidae Larks
- Alcedinidae Kingfishers
- Anatidae Ducks, Swans, and Geese
- Anhingidae Anhinga and Darters
- Anseranatidae Magpie Goose
- Apodidae Swifts
- Apterygidae Kiwis
- Ardeidae Herons, Egrets and Bitterns
- Artamidae Woodswallows, Bellmagpies, and Allies
- Atrichornithidae Scrubbirds
- Bucerotidae Hornbills
- Burhinidae Thick-knees and Stone-curlews
- Cacatuidae Cockatoos
- Callaeidae New Zealand Wattlebirds
- Campephagidae Cuckooshrikes
- Caprimulgidae Nightjars and Nighthawks
- Casuariidae Cassowaries
(Family not recognised in current HANZAB taxonomy – see Taxonomic changes)
- Casuariidae Emu and Cassowaries
- Cathartidae New World vultures
- Centropodidae Coucals, ground-cuckoos and couas
(Family not recognised in current HANZAB taxonomy – see Taxonomic changes)
- Cettiidae Bush Warblers and Allies
- Charadriidae Plovers and Lapwings
- Chionidae Sheathbills
- Ciconiidae Storks
- Cinclosomatidae Jewel-babblers and Quail-thrushes