A Biologist Explains How Prehistoric ‘Terror Birds’ Earned Their Name

Long before big cats, terror birds reigned as apex predators. Here’s how these flightless birds hunted, and why they went ...
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Predator recognition in birds : the use of key features / Roman Fuchs, Petr Veselý, Jana Nácarová

Intro; Abstract; Acknowledgements; Contents; Chapter 1: How to Study Predator Recognition; 1.1 Observation in the Wild; 1.2 Experiments; 1.2.1 Experiments on Nests; 1.2.2 Experiments on Winter Feeders ...