Kākāpōs are the heaviest parrot on earth. They are also nocturnal, flightless, and feature forward-facing eyes like owls. They evolved to live on the ground, evading airbound predators like eagles.

When it comes to the sky, birds usually rule the air, but not always. There are powerful hunters out there that send even the boldest flocks into a panic. These aren’t just predators; they’re apex ...