The term 'KIWI's Kin' is a reference to two birds native to Australia and New Zealand. The crossword solutions for this term are EMU (3 letters) and MOA (3 letters). The EMU is a large, flightless bird that is the second-largest living bird by height, after the ostrich. It is native to Australia and can be found in a variety of habitats. The MOA is an extinct species of flightless bird that was native to New Zealand. It was the tallest bird ever to have lived and was hunted to extinction by the Maori people of New Zealand. Both the EMU and the MOA are closely related to the KIWI, making them the KIWI's kin.