Kōhatu Shag – Lost Worlds, Vanished Lives

Ground control to Major Tom: The otherworldly Herangi Hill at Motu i Pao/Cape Maria van Dieman where Fred found the ancient Moho skull. Photo courtesy of Jennifer Carol.

In the pouring rain, surrounded by flowing sand lava and cascading lahars, Fred Brook gingerly walks towards Matt Rayner and me. He’s sliding across a steep sand dune, his hands carefully cupped before him. Whatever he is holding appears precious. It is; Fred has hit the jackpot. Through the rain, we get a glimpse of a powerful beak, possibly thousands of years old.

Fred has found the ancient skull of a Moho, the extinct North Island Takahē (Porphyrio mantelli), that died out shortly after the arrival of Polynesians in Aotearoa. This fossilised taonga represents what we have come here to find. It is also providing a rare glimpse at what the tip of Northland could have been like then and may be like in the near future. Continue reading “Back to the Future in Northland: Fossils illuminate a flight path towards ecosystem restoration”

New Zealand was once a land of birds. A bustling and cosmopolitan metropolis of different species that had evolved in isolation until the arrival of humans. Scientists thought we knew the characters that made up this enigmatic ecosystem of a time long past, but we were wrong.

Hiding in plain sight, in fossil deposits throughout Northland, and natural history collections, was an entirely new species of seabird, the Kōhatu Shag, albeit sadly extinct. This research has just been published in Molecular Phylogenetics and Evolution and included collaborators from the Otago Palaeogenetics Laboratory (University of Otago), Arizona State University, Birds New Zealand, Auckland Museum, Canterbury Museum and the Museum of New Zealand Te Papa Tongarewa. Continue reading “Hiding in plain sight: how we found New Zealand’s newest seabird, the Kōhatu Shag”