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
Discover 11,128,835 listings and 278,120 playable programmes from the BBC
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