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Scientists have long speculated that falcons’ eye markings improve their ability to target fast-moving prey, like pigeons and doves, in bright sunlight. Now research suggests these markings have evolved according to the climate.
Using photos of peregrine falcons from around the world shared by bird watchers, the University of Cape Town team scored the size of dark eye strips on each bird.
Dark eyeliner feathers of peregrine falcons act as sun shields to improve the birds hunting ability, a new scientific study suggests. Scientists have long speculated that falcons eye markings improve their ability to target fast-moving prey, like pigeons and doves, in bright sunlight. Now research suggests these markings have evolved according to the climate; the sunnier the bird s habitat, the larger and darker are the tell-tale dark sun-shade feathers.