Sedge warbler - the last summer visitor

Singing from a neighbour's garden this morning, the scratchy collection of noises that just about make a song and belonging to a Sedge warbler could be heard. Just as our local Nightingales have quickly dropped into silence having been here 8 weeks, this Sedge Warbler must surely be the last summer visitor of the year? Sadly, the bird which could be heard most of the morning never ventured to the perfect habitat I've created for it at the bottom of the garden, preferring instead to sing from deep within a garden hedge. This Sedge warbler is the first one we've heard from the garden for at least 6 years.