GUACO, particularly in the Mexican state of Jalisco, is the enthusiastic and excited prolonged melodic cry "in crescendo", which is interspersed in Mexican ranch songs. They are preserved in Mexican Gold Film films; for example, in those of Pedro Infante, Jorge Negrete, Antonio Aguilar; even in the comics of Cantinflas, when he sings in the serenades of his films, v : gr . : "El Profe", "For My Guns", The Sweeper", etc. . Some synonyms, words or similar expressions can be bravo, bravo! , oh ay ay ay! , 40, oh, jalisco, don't crack! 41 ,
It is the name of a bagpipe zulian musical band born in Maracaibo (Venezuela). In Colombia is the name of a type of Heron, whose scientific name is Nycticorax nycticorax, of the Ardidae family. It also said huaco, feetfirst, visit or night heron. In America, a guaco is also the same cheerful or Merry, Hawk known by other common names: guace, valdivia, guaicurú. Its scientific name is laughing cachinnans and belongs to the Family Falconidae. It is also the name of a plant, whose scientific name is Mikania glomerata and belongs to the family Asteraceae. It has medicinal uses, including as an antidote for snake bites and treatment of melanoma.
