Letters
01 October 1988
Letters
Field identification of Radde's and Dusky Warblers S. C. Madge and Richard Grimmett (Brit. Birds 80: 595-603) provided a useful review of the characters of Radde's Phylloscopus schwarzi and Dusky Warblers P. fuscatus. As the a u t h o r s showed, the diff...
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