Presenter Dermot O'Leary hails the greater black-backed gull as an 'Alsatian of the skies', as he marvels at their hardy survival skills and effortless aerodynamics. Show more
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Presenter Dermot O'Leary hails the greater black-backed gull as an 'Alsatian of the skies', as he marvels at their hardy survival skills and effortless aerodynamics. Show more