In the Serra da Estrela (Portugal) silence is sometimes broken by the calls (chamamentos) of shepherds to control their flocks of sheep. These sounds are the basis for the sound poet Américo Rodríguez's compositions.
1995
2018
2004
1973
1996
1985
1966
1984
1992
2003
2010
2025
2022
2015
1967
2023
1972
2016