Fukushima and Chernobyl are more than 7,000km (4,350 miles) apart, but Dr Mousseau and his colleagues soon realised that the two sites had much in common.

福岛和切尔诺贝利相距7，000余公里（4350英里），不过Mousseau和同事们很快发现，两地的鸟类种群有共同之处。