Gray heron
1. The gray heron is a large waterfowl with a body length of 90-100 cm, a wingspan of 150-175 cm, and a weight of 1.0-1.9 kg. The plumage of an adult is gray-blue, with a white belly and black legs. During the nesting period, a black bangs appears on the male's head. The gray heron has a long and ...