...that a seagull has an in-built need to dampen its bum every so often? Next time you're at the beach, keep a close eye on the gulls. If they aren't noisily asserting their right to your sandwich, they will likely be standing beside a calm area of water. Every so often they will amble over and dip their arse lightly into the water for a moment, as though extinguishing a gently smouldering