Juvenile male Eurasian Sparrowhawk (Accipiter nisus) yawns or vocalises silently, with third eyelids across. See Description. Lake District National Park, Cumbria, England
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Juvenile male Eurasian Sparrowhawk (Accipiter nisus) yawns or vocalises silently, with third eyelids across. See Description. Lake District National Park, Cumbria, England
This strange behaviour was in direct response to a low-flying jet fighter passing overhead. I have not yet found a satisfactory explanation. Was it fear? A threat?