Knockentiber - Springside Disused Railway Line, Ayrshire, Scotland Apr 1999.
Territorial song from overgrown hawthorn hedgerow.
I've started uploading some sonograms of old recordings I've made to the main website, including Blyth's Reed Warbler and Spotted Crake from Finland, Melodious Warbler and Golden Oriole from Spain, and Grasshopper Warbler and Sedge Warbler from Scotland. See: www.fssbirding.org.uk/sonagrams.htm