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The sky was full of those Sandmartins at the end of August 2010. They have their nests in a sandpit nearby. The recording is not brilliant, as they make only a few sounds during the flight. FR-2LE recorder and MKH40 microphones.
Type
Wave (.wav)
Duration
2:13.787
File size
36.7 MB
Sample rate
48000.0 Hz
Bit depth
24 bit
Channels
Stereo