Japanese Swamp Warbler

The Japanese Swamp Warbler, or Marsh Grassbird as it is sometimes known, is only found in east Asia and has a restricted and local distribution.  BirdLife classifies it as “Near Threatened”.  I saw and heard my first one in a reedy field at Dandong, Liaoning Province, this May and it was the memory of the song that came flooding back this morning when, on arrival at Wild Duck Lake, I could hear a bird singing from the reedbed close to the yurts at the western end of Ma Chang.

I was surprised that it was singing, not just because it is now mid-October (some warblers do sing occasionally on autumn migration) but because it was -2 degrees Celsius!

Nevertheless, it sang for over half an hour, just after sunrise, allowing me to make a recording of its song with my Canon EOS 7D.  This bird won’t win any awards for its vocal repertoire, the song being rather repetitive, but it’s a distinctive sound and a joy to hear on a stunningly beautiful, still autumnal dawn at Wild Duck Lake.

Listen to the recording of the Japanese Swamp Warbler by clicking here

Occasionally, it also clambered to the top of a reed, allowing me to capture an image.  At the time I thought it must be a good Beijing record.  After speaking to a couple of locals, it turns out that it is either the second or third record for the capital.  Cool.

Japanese Swamp Warbler (Marsh Grassbird), Locustella pryeri, Ma Chang, Wild Duck Lake, Beijing, 11 October 2012.