Bauer Media's Radio City has taken a dramatic fall in listeners this quarter, with over 80,000 listeners leaving the station.
Sister station City Talk has also lost an extra 14,000 listeners since its first survey nine months ago, and Magic 1548 has seen a dramatic drop in average hours but gained 6,000 listeners.
Elsewhere at Bauer, Magic London remains the station with the biggest commercial audience, attracting over two million each week, Kiss 100 drops over 200,000 listeners this quarter and digital station heat now has its highest ever reach of 623,000 listeners.
Around the country, Magic 1152 in Manchester loses 23,000 listeners, Magic 1170 in Teeside adds 11,000 and Magic AM in South Yorkshire attracts 10,000 pairs of ears.
On FM, Metro adds an extra 10,000, Viking adds 21,000, Clyde 1 takes a hit with 39,000 listeners lost.