But Ring Ouzels were much more vocal with birds singing from different places ...
... one was producing two distinct songs ...
... the first was what I think of as the typical song ... two, three or four pure whistled notes ...
... the second was a series of three similar notes but with a much more buzzy quality ...
The sonograms illustrate the different quality of the notes. ( A Willow Warbler song is just ending before the first song - traces show on the sonogram. )
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