Kiwis: Apterygidae

Kiwis are nocturnal, meaning they are most active at night. They live in burrows they dig several weeks before they are used. This allows the regrowth of moss and other vegetation that camouflages (KAM-uh-flaj-uhs) the burrow. A pair of kiwis can have up to one hundred burrows within their established territory, which is generally 61.75 acres (25 hectares) but can be as much as 120 acres (48 hectares).

Kiwis are shy, night birds with a keen sense of smell. They are monogamous, meaning they mate with only one partner. They pair up for at least two or three breeding seasons and sometimes for life. The female usually digs a nest in the ground where she lays one or two large eggs, weighing about 1 pound (0.45 kilograms) each.