A bukkehorn also called ″Billy Goat Horn″ in English is an ancient Norwegian musical instrument, made from the horn of a ram or a goat. The billy goats it is made from are usually 5 to 7 years when the horn is taken. It was traditionally used by shepherds and milkmaids on summer dairy farms in the high mountains, as a signal-instrument or as a scaring instrument. When the Bukkehorn later got finger holes it became possible to play melodies with it. The instrument has two blowing-techniques: the trumpet-principle is the most common, but the clarinet-principle is also used. The most famous artist playing this instrument is Karl Seglem.