Rob Kososki

“Many birds of prey, like eagles, falcons, and vultures, actually have two acute zones in each eye—one that looks forward, and another that looks out at a 45-degree angle. The side-facing one is sharper, and it’s the one that many raptors use when hunting. When a peregrine falcon dives after a pigeon, it doesn’t plunge straight at its prey. Instead, it flies along a descending spiral. That’s the only way it can keep the pigeon within its murderous side-eye, while also pointing its head down and maintaining a streamlined shape.[*20”
― Ed Yong, An Immense World: How Animal Senses Reveal the Hidden Realms Around Us