List of bird families by number of genera and species


 * Palaeognaths are birds from ostriches to tinamous.
 * Fowl are birds from megapodes (e.g. Malleefowl) to pheasants.
 * Metaves are birds from flamingos to hummingbirds.
 * Coronaves are birds from the hoatzin to the passerines (e.g. House Sparrow).

Passerae: Accipitrimorphae
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 * 78 || Cathartiformes || Cathartidae || 5 || 7 || The New World vultures. || List of Accipitrimorphs
 * 79 || Accipitriformes || Sagittariidae || 1 || 1 || Monotypic. The Secretarybird. || List of Accipitrimorphs
 * 80 || Accipitriformes || Pandionidae || 1 || 1 || Monotypic. The Osprey. It is occasionally split into two species. || List of Accipitrimorphs
 * 81 || Accipitriformes || Accipitridae || 71 || 251 || The hawks, kites, vultures, buzzards and allies. || List of Accipitrimorphs
 * 80 || Accipitriformes || Pandionidae || 1 || 1 || Monotypic. The Osprey. It is occasionally split into two species. || List of Accipitrimorphs
 * 81 || Accipitriformes || Accipitridae || 71 || 251 || The hawks, kites, vultures, buzzards and allies. || List of Accipitrimorphs
 * 81 || Accipitriformes || Accipitridae || 71 || 251 || The hawks, kites, vultures, buzzards and allies. || List of Accipitrimorphs
 * 81 || Accipitriformes || Accipitridae || 71 || 251 || The hawks, kites, vultures, buzzards and allies. || List of Accipitrimorphs

Passerae: Anomalogonatae
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 * 82 || Coliiformes || Coliidae || 2 || 6 || The mousebirds. || List of Anomalogonatids
 * 83 || Strigiformes || Tytonidae || 2 || 18 || The barn and bay owls. || List of owls
 * 84 || Strigiformes || Strigidae || 30 || 213 || The true owls. || List of owls
 * 85 || Leptosomiformes || Leptosomidae || 1 || 1 || Monotypic. The Cuckoo Roller. || List of Anomalogonatids
 * 86 || Trogoniformes || Trogonidae || 7 || 44 || The trogons and quetzals. || List of trogons
 * 87 || Bucerotiformes || Upupidae || 1 || 4 || The hoopoes. Sometimes considered monotypic. || List of Anomalogonatids
 * 88 || Bucerotiformes || Phoeniculidae || 2 || 9 || The woodhoopoes and scimitarbills. || List of Anomalogonatids
 * 89 || Bucerotiformes || Bucorvidae || 1 || 2 || The ground hornbills. || List of hornbills
 * 90 || Bucerotiformes || Bucerotidae || 16 || 59 || The hornbills. || List of hornbills
 * 91 || Coraciiformes || Meropidae || 3 || 27 || The bee-eaters. || List of Anomalogonatids
 * 92 || Coraciiformes || Brachypteraciidae || 4 || 5 || The ground rollers. || List of Anomalogonatids
 * 93 || Coraciiformes || Coraciidae || 2 || 12 || The rollers. || List of Anomalogonatids
 * 94 || Coraciiformes || Todidae || 1 || 5 || The todies. || List of Anomalogonatids
 * 95 || Coraciiformes || Momotidae || 6 || 15 || The motmots. || List of Anomalogonatids
 * 96 || Coraciiformes || Alcedinidae || 19 || 107 || The kingfishers. Sometimes split into three families. || List of kingfishers
 * 97 || Altirhiniformes || Altirhinidae || 2 || 4 || The highnoses. || List of Anomalogonatids
 * 98 || Piciformes || Galbulidae || 5 || 18 || The jacamars. || List of Anomalogonatids
 * 99 || Piciformes || Bucconidae || 12 || 35 || The puffbirds. || List of Anomalogonatids
 * 100 || Piciformes || Megalaimidae || 2 || 30 || The Asian barbets. || List of barbets
 * 101 || Piciformes || Lybiidae || 9 || 42 || The African barbets. || List of barbets
 * 102 || Piciformes || Semnornithidae || 1 || 2 || The toucan-barbets. || List of barbets
 * 103 || Piciformes || Capitonidae || 2 || 15 || The New World barbets. || List of barbets
 * 104 || Piciformes || Ramphastidae || 5 || 44 || The toucans. || List of Anomalogonatids
 * 105 || Piciformes || Indicatoridae || 4 || 17 || The honeyguides. || List of Anomalogonatids
 * 106 || Piciformes || Picidae || 33 || 232 || The woodpeckers. || List of woodpeckers
 * 94 || Coraciiformes || Todidae || 1 || 5 || The todies. || List of Anomalogonatids
 * 95 || Coraciiformes || Momotidae || 6 || 15 || The motmots. || List of Anomalogonatids
 * 96 || Coraciiformes || Alcedinidae || 19 || 107 || The kingfishers. Sometimes split into three families. || List of kingfishers
 * 97 || Altirhiniformes || Altirhinidae || 2 || 4 || The highnoses. || List of Anomalogonatids
 * 98 || Piciformes || Galbulidae || 5 || 18 || The jacamars. || List of Anomalogonatids
 * 99 || Piciformes || Bucconidae || 12 || 35 || The puffbirds. || List of Anomalogonatids
 * 100 || Piciformes || Megalaimidae || 2 || 30 || The Asian barbets. || List of barbets
 * 101 || Piciformes || Lybiidae || 9 || 42 || The African barbets. || List of barbets
 * 102 || Piciformes || Semnornithidae || 1 || 2 || The toucan-barbets. || List of barbets
 * 103 || Piciformes || Capitonidae || 2 || 15 || The New World barbets. || List of barbets
 * 104 || Piciformes || Ramphastidae || 5 || 44 || The toucans. || List of Anomalogonatids
 * 105 || Piciformes || Indicatoridae || 4 || 17 || The honeyguides. || List of Anomalogonatids
 * 106 || Piciformes || Picidae || 33 || 232 || The woodpeckers. || List of woodpeckers
 * 101 || Piciformes || Lybiidae || 9 || 42 || The African barbets. || List of barbets
 * 102 || Piciformes || Semnornithidae || 1 || 2 || The toucan-barbets. || List of barbets
 * 103 || Piciformes || Capitonidae || 2 || 15 || The New World barbets. || List of barbets
 * 104 || Piciformes || Ramphastidae || 5 || 44 || The toucans. || List of Anomalogonatids
 * 105 || Piciformes || Indicatoridae || 4 || 17 || The honeyguides. || List of Anomalogonatids
 * 106 || Piciformes || Picidae || 33 || 232 || The woodpeckers. || List of woodpeckers
 * 104 || Piciformes || Ramphastidae || 5 || 44 || The toucans. || List of Anomalogonatids
 * 105 || Piciformes || Indicatoridae || 4 || 17 || The honeyguides. || List of Anomalogonatids
 * 106 || Piciformes || Picidae || 33 || 232 || The woodpeckers. || List of woodpeckers
 * 105 || Piciformes || Indicatoridae || 4 || 17 || The honeyguides. || List of Anomalogonatids
 * 106 || Piciformes || Picidae || 33 || 232 || The woodpeckers. || List of woodpeckers
 * 106 || Piciformes || Picidae || 33 || 232 || The woodpeckers. || List of woodpeckers