New Zealand’s Critically Endangered Kakapo Birds Achieve Record-Breaking Population Milestone

A remarkable breeding season has produced a record number of kakapo chicks, offering renewed hope for one of the world’s most endangered parrot species. Conservationists working to protect these distinctive flightless birds, which were once on the verge of extinction, are celebrating this significant achievement.

According to New Zealand’s Department of Conservation, the kakapo population had declined to a critically low 51 individuals in 1995. The department confirmed that the current population has now reached 325, following the official addition of 90 chicks born this year to the tally.

These nocturnal birds, distinguished by their moss-green plumage and unique scent, possess powerful legs and large claws that enable them to climb up to 65 feet into the forest canopy to feed or rest. Unlike many bird species, kakapos do not breed annually; reproduction is closely linked to specific food sources such as rimu tree fruits, which grow natively in New Zealand and provide sufficient nutrition to support breeding only once every two to four years.

Rimu trees produced an exceptional abundance of their bright red fruits earlier this year, providing a rich source of calcium and vitamin D. This bountiful harvest triggered an unprecedented kakapo mating frenzy, according to scientists who documented the phenomenon.

During courtship, male kakapos establish territories on elevated ground such as rocks or hilltops, where they inflate specialized air sacs to emit deep, resonant booming calls every few seconds. These distinctive sounds can be detected by females hundreds of feet away. Female kakapos lay up to four eggs and raise their chicks independently. Notably, once hatched, kakapos can live for several decades, with lifespans comparable to those of humans.

Historically, kakapos were distributed extensively across New Zealand. However, they became vulnerable targets for the Maori, the first known inhabitants of New Zealand who arrived approximately in the 13th century. The Maori coined the bird’s name, a linguistic blend of the words for parrot (kaka) and night (po). These birds were hunted for their meat and feathers, sometimes kept as domestic pets, and featured prominently in Maori folklore and legends.

European settlers arriving in the 19th century posed an additional threat to the species. Their hunting practices and introduction of predators such as ferrets and weasels pushed kakapos to the brink of extinction.

Dedicated conservation efforts to save the kakapo began in the 1980s. Conservationists relocated birds to remote offshore islands free from predators like cats, rats, and ferrets. Supplementary feeding programs providing nuts and other nutrition were implemented, and each kakapo was equipped with a small radio transmitter to monitor its movements and activity.

The kakapo population gradually recovered, surpassing 200 individuals in 2020. According to the Department of Conservation, this marks the first time in approximately 75 years that numbers have exceeded 300.

“There is still a long road of recovery ahead, but 90 chicks in a single season is a record,” said Deidre Vercoe, a conservationist specializing in kakapo recovery at the department. “In the early years of recovery, it took 16 years to produce that many chicks.”

Scientists at the department expressed optimism that the next breeding season may not be far away. Predictive modeling suggests it could occur as early as 2028.

Source link