This is a list of Struthioniformes species by global population. While numbers are estimates, they have been made by the experts in their fields. For more information on how these estimates were ascertained, see Wikipedia's articles on population biology and population ecology.

The population of birds
Lists Anseriformes (waterfowl) Apodiformes (swifts and hummingbirds) Caprimulgiformes (nightjars and relatives) Charadriiformes (gulls and relatives) Ciconiiformes (storks and relatives) Columbiformes (doves and pigeons) Coraciiformes (kingfishers and relatives) Cuculiformes (cuckoos and relatives) Falconiformes (falcons and relatives) Galliformes (gamebirds) Gaviiformes (loons or divers) Gruiformes (cranes and relatives) Passeriformes (perching birds) Pelecaniformes (pelicans and relatives) Phoenicopteriformes (flamingos) Piciformes (woodpeckers and relatives) Podicipediformes (grebes) Procellariiformes (albatrosses and petrels) Psittaciformes (parrots) Sphenisciformes (penguins) Strigiformes (owls) Struthioniformes (ratites) Tinamiformes (tinamous) Trogoniformes (trogons and quetzals)
Key
Related Lists of organisms by population Lists of mammals by population Late Quaternary prehistoric birds List of extinct birds Lists of birds by region
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This list is not comprehensive, as not all extant Struthioniformes have been enumerated.

Species by global population

Common name	Binomial name	Population	Status	Trend	Notes	Image
Little spotted kiwi	Apteryx owenii	1,200[1]	NT[1]	[1]	Minimum estimate.[1]
Northern cassowary	Casuarius unappendiculatus	3,500 – 15,000[2]	VU[2]	[2]
Great spotted kiwi	Apteryx haastii	8,000[3]	VU[3]	[3]
Southern cassowary	Casuarius casuarius	10,000 – 19,999[4]	VU[4]	[4]
Common emu	Dromaius novaehollandiae	630,000 - 725,000[5]	LC[5]	[5]
Southern brown kiwi	Apteryx australis	29,800[6]	VU[6]	[6]
North Island brown kiwi	Apteryx mantelli	35,000[7]	VU[7]	[7]	Preliminary estimate.[7]

See also

• Lists of birds by population
• Lists of organisms by population

References