Today acquired this wonderful block of used stamps of Japan which is on Traditional Fishing method called Cormorant Fishing.
To control the birds, the fishermen tie a snare near the base of the bird's throat. This prevents the birds from swallowing larger fish, which are held in their throat, but the birds can swallow smaller fish. When a cormorant has caught a fish in its throat, the fisherman brings the bird back to the boat and has the bird spit the fish up. Though cormorant fishing once was a successful industry, its primary use today is to serve the tourism industry.
The types of cormorants used differ based on the location. In Gifu, Japan, the Japanese cormorant (P. capillatus) is used; Chinese fishermen often employ great cormorants, Darters (anhinga), which are very close relatives of cormorants, are also used for this fishing technique on occasion.