A groundbreaking drone survey has revealed a startling split in the fate of New Zealand’s endangered Erect-crested penguins. While one population has remained stable for decades, another has declined by more than 40%, apparently due to a combination of predators, worsening storms, and changing ocean conditions. Even more surprisingly, the tiny Bounty Islands support nearly as many breeding pairs as the Antipodes Islands, despite being 40 times smaller.
