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.
This list is not comprehensive, as not all extant Struthioniformes have been enumerated.
| Common name | Binomial name | data-sort-type="number" width="15%" | Population | Status | Trend | Notes | Image |
|---|---|---|---|---|---|---|---|
| Little spotted kiwi | Apteryx owenii | 1,200[1] | align=center style="background:#CEF2E0" | Minimum estimate. | |||
| Northern cassowary | Casuarius unappendiculatus | 3,500 – 15,000[2] | align=center style="background:#B0E0E6" | ||||
| Great spotted kiwi | Apteryx haastii | 8,000[3] | align=center style="background:#b0f4b0" | ||||
| Southern cassowary | Casuarius casuarius | 10,000 – 19,999[4] | align=center style="background:#B0E0E6" | ||||
| Common emu | Dromaius novaehollandiae | 630,000 - 725,000[5] | align=center style="background:#B0E0E6" | ||||
| Southern brown kiwi | Apteryx australis | 29,800[6] | align=center style="background:#b0f4b0" | ||||
| North Island brown kiwi | Apteryx mantelli | 35,000[7] | align=center style="background:#b0f4b0" | Preliminary estimate. | |||