It never fails to thrill me when the resident song birds start singing around this time of year. Is it that they can now be heard as the visitors are starting to think about heading home or, as I suspect, all the birds are coming out of hiding from their late summer moult (late July through August), and while the migrants head home or prepare for the journey, the residents start to anticipate the hard months ahead with a wee song? Of course, not all the Robins, Blackbirds and Tits that you can now hear are necessarily going to reside here over winter: some will head south and be replaced by the same species moving down from further north.
Either way, it’s great to hear them in full voice in the September sunshine (or the squally showers we've been having!). And it’ll soon be easier to see them as the trees lose their leaves (at least that’s one positive aspect of the cold creeping in!)