Are you struggling to know what to wear for the weather at the moment? One day in the UK it's freezing, the next rain, the next a veritable heat wave. Apart from playing havoc with BBQ plans, this extreme variation in weather is also affecting local wildlife. Georgia Mills went for a stroll along the river Cam with the RSPB's Richard Bradbury to find out more. Like this podcast? Please help us by supporting the Naked Scientists