Labels:aquatic bird | animal | text | bird | penguin | outdoor OCR: FIGHTING BACK I F THEY cannot fly away from danger, birds will often defend themselves. Many large birds can inflict serious wounds with their beak, while cassowaries and ostriches can kill a human with their claws. Terns and magpies dive-bomb animals that come near their nest. Fulmars and shearwaters spit foul-smelling oil at intruders. BITING BACK A northern gannet's strong, booked beak is more than a match for gulls on the lookout for undefended eggs.