BBC News has an article saying "At least one of Britain's birds appears to be coping well as climate change alters the availability of a key food."
"'The chicks hatch and are fully grown within two weeks, so they need something that's really abundant - that's why they synchonise their breeding so hatching co-incides with the emergence of the caterpillars.' The caterpillars' appearance is triggered by ambient temperature - that has been shown in the laboratory - and it is believed that [the birds] also begin their breeding cycle in response to temperatures."
They also list a number of species (the North American wood warbler, Dutch honey buzzard, and red admiral butterfly) are falling out of sync with their food supply. "'The UK finding is to some extent surprising in that the birds are using the same old rules, but the rules still work,' he told BBC News. 'In our study population, the same old rules don't work any more; so it's an interesting question as to which situation is the normal one and which is the exception.'"
While the article is interesting, the most noteworthy aspect is the headline.
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