What is "horcas"

Horcas is a Heavy metal band from Argentina created in 1988 by Osvaldo Civile, former guitarist for V8, Argentina’s landmark heavy metal outfit in the 1980s. After quitting V8 in 1985, and impressed by the new generation of thrash metal bands from the Bay Area led by Metallica, Civile set out to put together a new group in that line. That seminal project, which included former V8 bandmate Gustavo Rowek on the drums, was however delayed for a number of reasons, and it was not until 1988 that it could definitely take off. By that time though, put off by the incessant postponements, Rowek had joined another former V8 member, Walter Giardino, in his new project Rata Blanca.