Thursday, 29 November 2012
Tuesday, 27 November 2012
Friday, 23 November 2012
While walking past the Lifeboat slipway, I heard a Yellow-browed Warbler calling. In fact it continued to call for about 30 minutes, enabling me to sound-record it. Oddly, there was sometimes an additional note included with the typical 'tseeooeet' call (see sonogram below and listen to call via player).
Tuesday, 20 November 2012
Having recently acquired sound recording equipment (unfortunately too late to record the much debated Dump Clump Yellow-browed Warbler, or to attempt the putative Syke's Warbler) Bob and I are making our first forays into a more detailed appreciation of bird vocalizations - sonograms. It was pleasing therefore, to record a group of Common Crossbill in the pine belt at Trenoweth and confidently assign them to type: Type C or Glip Crossbill (see sonogram below).