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BRITISH WARBLERS. First half of April Last half of April First half of May Last week in May and first half of June MAP SHOWING APPROXIMATELY THE DATE OF ARRIVAL OF THE MARSH WARBLER IN CERTAIN PARTS OF EUROPE.
BRITISH WARBLERS. First half of April Last half of April First half of May Last week in May and first half of June MAP SHOWING APPROXIMATELY THE DATE OF ARRIVAL OF THE MARSH WARBLER IN CERTAIN PARTS OF EUROPE.
