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Winter moth (Operophtera brumata) caterpillars are a vital food for great tit chicks. They can make up 90% of the chicks' diet during the two weeks after hatching. Images courtesy of AG Gosler (chicks) and Przemyslaw Zelazowski (caterpillar)
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Winter moth (Operophtera brumata) caterpillars are a vital food for great tit chicks. They can make up 90% of the chicks' diet during the two weeks after hatching. Images courtesy of AG Gosler (chicks) and Przemyslaw Zelazowski (caterpillar) |