New Zealand’s kiwi birds, a national symbol, are endangered. And scientists say the rest of the island’s bird populations have also been hard hit by humans. (Credit: Lakeview Images/Shutterstock)

When the Maori arrived to New Zealand from Tahiti some 700 years ago, they found a “land of birds.” The gargantuan, ostrich-like moa stood as tall as 10 feet and the kakapo – a giant flightless parrot with the face of an owl –then roamed the island country in abundance. Today, moa are extinct and ka