The sound measurements were carried out in villages the Campo Dianteiro (CD), Lagoa (L), VárzeaCova (VC)
and Vila Pouca (VP), all in the immediate vicinity of the wind farm. Measurements were done in two different
locations in each village, corresponding to a “higher” and a “lower” point (as most of the villages have a steep
topography) using a sound level meter Bruel&Kjaer model 2260 type 1, equipped with a tripod. The equipment was
positioned at a 1.2 m of height from the ground and no closer than 4.0 m from any façade, in order to avoid the
reflection effect. For each measurement location, the LAeq was registered considering a 5 minutes measurement
period, during which the background noise was continuously monitored with the aim of avoiding the inclusion of
“external” relevant noise events. When one such event occurred, as for example, the sudden barking of a dog or the
passing nearby car, the measurement was stopped and the event eliminated. During the noise measurements the
wind speed was also assessed and registered and found to be consistently low, i.e., less than 2 m/s. It is also