"Kākāpō occupied all forests and adjacent habitats, on the NZ mainland prior to human settlement ca. 0.8 ka. (...)
Our study demonstrates the value of late-Quaternary (ca. 50 ka to present) fossils for conservation biology and reveals how contemporary data alone can underestimate the habitat breadth of previously more widespread species."
https://www.sciencedirect.com/science/article/pii/S0277379125001076
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