Width of tail-band of immature Mediterranean Gulls Sirs,--As the plumage of immature Mediterranean Gulls Larus melanocephalus was described in some detail by P. J. Grant and R. E. Scott (Brit. Birds, 60: 365-368), it seems a pity that they did not mention the width of the dark band on the tail. In the few individuals I have seen this band looked rather narrow. In the sketch by D. I. M. Wallace in ...

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