Heron's cousin is a term used to refer to four different species of birds: the CRANE, STORK, IBIS, and EGRET. The CRANE is a large bird with a long neck and long legs, while the STORK is a large bird with a long neck and long beak. The IBIS is a wading bird with a long curved bill, and the EGRET is a white wading bird with long legs and a long neck. All four of these birds are related to herons, and are often seen in the same habitats.