Biggles in the Blue by Captain W.E. Johns

The race is on when Biggles dashes to Jamaica to try to beat his old enemy von Stalhein in the search for some missing blueprints of secret weapons. The search takes Biggles, Algy, Ginger and Bertie into the flamingo colonies and mangrove swamps of the neighbouring tropical islands, where several times they come to blows with the enemy.