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AH_Barn Owl (Tyto alba) Wing Detail_2.jpg
Barn Owl (Tyto alba) wing detail (dead individual). The foremost wing feather (10th primary) has a row of tiny barbs along its leading edge. These fimbriae break down the turbulence of the air hitting the wing into microturbulences. This muffles the sound of the air flowing over the owl's wing to allow them to fly almost silently. Derbyshire Dales, UK. January.