Japanese paper, mizu-hoshi, and iwagaki (rock paints). The pheasant dove is said to be a bird that brings good luck with its "Deddee poppo" call. Autumn is the image color. Nihonga" is based on a style of painting that has existed for more than 1,000 years, and its materials are old, historically cultivated, and traditional. The technique involves painting on Japanese paper, silk, wood, etc., using natural paints such as sumi ink, iwa-enogu (mineral pigments), gofun (gofun), etc., and glue (nikawawa) as an adhesive. Gold and other metal materials (gold leaf, etc.) are also used. Iwa-enogu, made from ores, is a beautiful, sand-like powder. Mizuhigure, made from clay, is a fine, stretchy paint with fine particles. Artificial versions of iwa-enogu and mizuhoshi egur are also made, and are available in a wide variety of colors. Goko, made from shells, is a white pigment with fine particles.