We started at a site where people have reported anything between 1 Blyth's Reed and up to 2 Blyth's Reed and 2 Marsh Warblers all on the same night. We had 2 warblers singing as soon as we got out of the car and there was such a difference in their songs that we immediately thought Blyth's Reed and Marsh. However, after a lot of questioning and listening to other warblers during the night it became clear(er) that we hadn't heard a Blyth's Reed and had actually heard a rich Marsh Warbler singing alongside a very poor (plain) Marsh Warbler.
We heard Marsh Warblers singing at 5 locations in total including 4 along one stream.
At Hellesjøvannet we had quite a cacophony of sound with Marsh, Reed and Sedge Warbler singing alongside a very active Water Rail. The Water Rail was singing, for us, an atypical song and when we initially heard it from over a kilometre away we were completely unsure as to what it was.
This video does not have the best sound quality and works best with a loudspeaker. Any comments on the warbler at Torp would be appreciated.