How did aboriginals catch emus?

Aborigines did not catch kakapo. Kakapo have only ever lived in New Zealand. "Aborigines" refers to the original native people of many countries, such as Australia and Canada, but not to the Maori of New Zealand. While the Maori of New Zealand are considered the First Nations peoples for that country, they are relative "newcomers" to the islands, and generally not referred to as aboriginal.