but earlier research had suggested that whiter barn owls were more efficient hunters than their darker counterparts during a full moon. Barn owl expert Alexandre Roulin, a professor of biology at ...

but earlier research had suggested that whiter barn owls were more efficient hunters than their darker counterparts during a full moon. A barn owl shown here perches at night under a starry sky in ...

but earlier research had suggested that whiter barn owls were more efficient hunters than their darker counterparts during a full moon. Barn owl expert Alexandre Roulin, a professor of biology at ...

but earlier research had suggested that whiter barn owls were more efficient hunters than their darker counterparts during a full moon. Barn owl expert Alexandre Roulin, a professor of biology at the ...

Flying slowly and silently through the night sky, barn owls are majestic nocturnal hunters that successfully prey on rodents scurrying along the ground below. Scientists have long puzzled over a ...