(Plates 25-29). T H E Great Reed-Warbler (Acrocephalus arundinaceus) is the largest of the warblers on the British list. Its size and its song are its most conspicuous field characters, though in his notes which we publish below Mr. Mountfort draws attention to other distinctions between it and the Reed-Warbler (A. scirpaceus). The song is much louder and harsher than that of the Reed-Warbler or t...

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