ABSTRACT The song of the Dark-throated Thrush Turdus ruficollis of the race atrogularis (`Black-throated Thrush') is described from one of the first fully authenticated tape-recordings of this vocalisation, and is shown to be distinctly different from that of the race ruficollis (`Red-throated Thrush'). Further studies of voice, mate selection, and breeding biology in general are needed for a full c

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