Hunger was part of the challenge for contestants on the reality television show “Race to Survive: New Zealand.” As nine teams trekked, climbed and paddled their way through some of the country’s harshest terrain, they also had to forage and hunt for their own food.

       New Zealand officials have now issued warnings to the show’s producers, they said, after one contestant killed and ate a bird from a protected species during filming last October.

       The weka, a flightless bird known for its bold curiosity, is endemic to New Zealand and is considered vulnerable by the International Union for Conservation of Nature, which evaluates threatened species. They often roam around campsites and picnic areas and will sometimes steal crops, food and other small objects.

       The show, which began airing its second season on USA Network in May, follows nine pairs of adventurers, survivalists and athletes as they navigate around New Zealand’s South Island to compete for a $500,000 prize.

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       The teams are allowed to bring only what they can carry, and the slowest to reach each camp is eliminated. They are not given food but can take detours to find food caches left for them on the island.

       Two contestants, Spencer Jones and Oliver Dev, were disqualified in the eighth episode. Producers appeared after they completed a leg and said that they broke a rule.

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