Kiwi Bird Protection Program Uses New METTLER TOLEDO Scales to Ensure Birds’ Survival

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New Zealand’s national symbol is in decline. METTLER TOLEDO balances are helping to ensure that kiwi numbers increase by providing weighing expertise to Operation Nest Egg (O.N.E.), a program that collects and incubates kiwi eggs so chicks are protected until they are big enough to fight off predators.

Kiwi Birds

Kiwi eggs and chicks are weighed and monitored every day using METTLER TOLEDO scales. This ensures birds are thriving and gives them a better chance of surviving once they are released.

Using the data, zookeepers can adjust feeding schedules to ensure that birds thrive and are not released early, when they have a decreased chance of survival.

METTLER TOLEDO balances are being used to ensure that kiwi chicks hatched in captivity are putting on enough weight to thrive once they are released into the wild. Accurate weighing of the chicks is essential to the decades-old program’s success.

Flightless kiwi birds fend off predators rather than take to the skies. In the New Zealand wild, about 50 percent of kiwi eggs fail to hatch. Of those that do hatch, about 90 percent of chicks die within six months, and most these are killed by cats or stoats. More than 200 chicks are raised each year by non-for-profit facilities around New Zealand, many at the Auckland Zoo.

Weight is a key indicator that chicks are ready to move onto the next part of their journey. Using the data, zookeepers can adjust feeding schedules to ensure that birds thrive and are not released early, when they have a decreased chance of survival. Reliable, easy-to-use lab balances from METTLER TOLEDO are an integral part of the zoo’s process.

A critical milestone for a kiwi chick is its hatch weight, which on average ranges from 325 grams to 400 grams. Chicks hatch with a large and nourishing external yolk sac, which they gradually absorb through their navel over their first 10 days of life. Chicks will then drop in weight until they start feeding. Then, over a three-to-four week rearing period at the zoo, they gradually regain their hatch weight.

Once this weight is achieved, chicks are ready to be released to protected wild areas such as crèche islands or mainland sites. They remain at these sites until they reach sub-adulthood and have grown to 1.2kg – a size where they are strong enough to fend off predators.

Following a final weigh-in to confirm adequate size, chicks are relocated back home to the wild areas where they were originally conceived. METTLER TOLEDO is proud to be a part of helping to ensure the success of the O.N.E. program and health for the national symbol of New Zealand.

About METTLER TOLEDO
METTLER TOLEDO is a leading global manufacturer of precision instruments. The Company is the world’s largest manufacturer and marketer of weighing instruments for use in laboratory, industrial and food retailing applications. The Company also holds top-three market positions for several related analytical instruments and is a leading provider of automated chemistry systems used in drug and chemical compound discovery and development. In addition, the Company is the world’s largest manufacturer and marketer of metal detection systems used in production and packaging. Additional information about METTLER TOLEDO can be found at http://www.mt.com.

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Branko Radovinovic
METTLER TOLEDO
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