Introduction: Cannabis is a large heron with a body length of 59-77cm. The body is thick and fat, the mouth is thick and pointed; the neck and the feet are thick and short; the head is dark brown; the back is tan, with thick dark brown spots; the lower body is yellowish brown, with dark brown and thick vertical stripes; the mouth is yellowish brown; The feet are yellowish green. Reeds that inhabit rivers, lakes, and ponds in mountainous hills and foothills. Nocturnal, mostly in the evening and evening activities, hidden in the reeds and grass in the water during the day, and sometimes in the swamp grass during the day. It mainly feeds on animal food such as fish, shrimp, frog, crab, snail, and aquatic insects. It is widely distributed in Europe, Africa and Asia.