How big are kiwi birds eggs

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how big are kiwi birds eggs

Strangest of all, it lays an egg that can weigh up to a quarter of its body mass. Kiwi are monogamous and often mate for their adult lives — between 10 and 30 years. Largest Wing Span.

Ouch! Kiwi Birds Lay Eggs a Quarter of Their Body Size

Simon Tan. The female has to walk with her legs wide apart to accommodate it. Other predators include dogs, feral cats and even wild pigs, which dig up kiwi burrows.

Kiwi are also kept in captivity at 14 kiwi houses around New Zealand. Newsletter Never miss a Nat Geo moment Your email address.

Producing an egg

Print the full story Print the full story. Although enormous, the egg is laid quickly and, for brown kiwi and little spotted kiwi females, her work is then done.

One area of study is mate choice and how long kiwis stay together. Its wings are only about 1 inch 3 centimeters long and are useless, completely hidden under the feathers. Days Hours Minutes Seconds. But what possible advantage could a cripplingly huge egg confer? It is rare, but not unknown, for a third egg to be produced, especially if one of the first eggs is lost or collected as part of Operation Nest Egg.

how big are kiwi birds eggs

In a world with few ground-dwelling egg-eating predators but many chick-eating flying predators i. Search What are you looking for? Personalised content reflecting your interests on the site.

how big are kiwi birds eggs

The Department of Conservation with the Bank of New Zealand began a programme of research and protection in 1991. Main menu. When they have reached a safe weight they are returned to the area they came from. National Geographic showcases leading explorers, scientists, environmentalists, film makers and renowned photographers.