This video shows a male common blue butterfly in England.
According to the Dutch Vlinderstichting entomologists today, 2015 was not a good year for butterflies, with less individuals observed than in an average year.
The Top Five for butterfly species observed was:
1. Meadow brown 46,516
2. Small white 19,000
3. Green-veined white 15,837
4. Ringlet 12,945
5. Common blue 10,568