Female Blackcap in the tall trees the other side of the path from the shed at the Sunnyside Lane entrance to the Reserve.
A BTO factsheet on wintering Blackcaps has the following interesting information:
“A growing number of Blackcaps that breed in central Europe are coming to our shores to spend the winter instead of travelling to the Mediterranean, where they normally go. In Britain, food provided in gardens, coupled with our warming winter climate, is helping Blackcaps to survive. The reward for enduring harsher winter conditions here than in the Mediterranean is that our Blackcaps have a shorter journey back to central Europe in the spring, meaning that they can stake early claim for the best territories. Central European-breeding Blackcaps that winter with us have been found to lay more eggs and fledge more chicks than those that winter further south.”
https://www.bto.org/sites/default/files/u23/downloads/pdfs/factsheet_blaca.pdf