These sound files accompany a paper on the separation of Willow and Marsh Tits, published in BB in November 2009: Separation of Willow Tit and Marsh Tit in Britain: a review Richard K. Broughton Brit. Birds 102: 604-61. 1. Marshtit_calls - 'pitchou' and chickadee calls of an agitated (scolding) Marsh Tit, Oxfordshire, March 2009. This accompanies Figure 5a. Marshtit_calls 2. Marshtit_cal...

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