A wood pigeon seeks food in a stubble field. The pigeon is alone, spotting spilled grain on the ground. But it does not discover a keen-sighted figure watching her from behind the trees!
A shadow shoots through the air. Swiftly, close to the ground, almost invisible. A mere second later, a goshawk sits on its victim.
It looked simple – and it was! Why was the goshawk so impressively successful?
When the pigeon seeks food, she sometimes lifts her head to watch out for predators. But it is hard for the pigeon, to do both things at once.