what family do Kiwi and the common ostrich belong to?
Kiwi Kiwi (pronounced ) or kiwis are flightless birds native to New Zealand, in the genus Apteryx and family Apterygidae. Approximately the size of a domestic chicken, kiwi are by far the smallest living ratites (which also consist of ostriches, emus, rheas, and cassowaries), and lay the largest egg in relation to their body size of any species of bird in the world.
Nine-primaried oscine The nine-primaried oscines are a group of songbird families from the superfamily Passeroidea. It is composed of the Fringillidae (finches and Hawaiian honeycreepers), Emberizidae (buntings, American sparrows etc.), Parulidae (New World warblers), Thraupidae (tanagers), Cardinalidae (cardinals), Icteridae (icterids) and the monotypic Peucedramidae (olive warbler). The name of this group arises from the fact that all species within it have only nine easily visible primary feathers on each wing (in reality most, if not all, also have a 10th primary, but it is greatly reduced and largely concealed).