Streaming for a fourth year running from the same spot on the northern banks of River Lea, in Hackney Marshes / Waterworks Meadow in East London. You can hear a fair number of nesting and visiting birds, the distant train, infrequent airplanes, potentially a dogwalker from across the other banks. Previous years we've heard herons, kingfishers, coots, wrens, robins, blackbirds, rooks, magpies, tits, finches, wagtails, and all sorts of other critters.