ocr: DEFENSE BIRDS 1 NEED to be light to fly, SO they lack the heavy built-in defenses, such as horns or armor, developed by other animals. Instead, birds are instinctively cautious, and normally react to danger by flying away. However, ground-living species cannot always make a fast getaway. For them, camourlageforms a first line of defense. These three birds show how effective camouflage can be. RINGED PLOVER NIGHTJAR WOODCOCK
