ML208176871

Деталі спостереження

The bird was 10 meter away from the recorder. A total of three birds were present, displaying social behaviour. The birds were heard in distance and then attracted with a whistle by the recorder, and left alone for more than 1 minutes. The following filters were used on Audacity to the sound recording done with Zoom H4n and Sennheiser 66 Shotgun. Convert stereo to mono. Remove noise. High Pass filter 48 dB and 1700 Hz.