Butterfly rescue

At this time of year, if you find a butterfly fluttering on the inside of your window, it will probably be either a peacock (Aglais io) or a small tortoiseshell (Aglais urticae). It will have come in during the autumn looking for a cool, dark and sheltered place to overwinter and the gap behind the wardrobe in your bedroom must have seemed just right.

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Overwintering

Almost all of the 21 species of butterfly that have been seen in the park this summer, will overwinter here. Butterflies can hibernate in all four of the stages of their development.

Britain has fifty eight species of butterfly, and nine of these species spend the winter as an egg, thirty two spend it as a caterpillar, eleven as a pupa, and six as an adult.

Here are some examples:

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