The term 'long-necked wader' refers to three species of birds: the CRANE, HERON, and EGRET. Cranes are large, long-legged birds with long necks and beaks. Herons are similar in size and shape to cranes, but have shorter legs and longer necks. Egrets are smaller than both cranes and herons, and have long, slender necks and long legs. All three species inhabit wetlands and feed on fish, frogs, and other aquatic creatures.