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17.6.15

Blue tits are well known for timing the hatching of their nestlings with the emergence of oak leaf feeding caterpillars. This year has seen many birds with small broods or not attempting to breed at all. With the weather this spring being quite benign, and plenty of adult birds present, it is surmised that there is a problem with food supply. Whether this is a result of the relatively mild conditions last winter, or a consequence of climate change remains to be discovered. One wonders whether Codling and Tortrix will be reduced, to the gratification of top fruit growers! Alastair Henderson