The Bearded Tit Panurus biarmicus has been an occasional breeding species in the Björka lertag nature reserve in south-central Sweden since 1987. The reserve lies at the northern limit of the bird’s range in Sweden, and cold winters have decimated numbers there on several occasions. On 2nd February 2001, I visited the reserve with Pia Mrose. The day was clear and sunny, with a cold wi


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