This video is called Papilio machaon.
And this video is the sequel.
Translated from ARK conservationists in the Netherlands:
Posted by ARK on Saturday, August 27, 2011
Despite the wet summer this year remarkaby many swallowtails are seen in the Gelderse Poort. Possibly, the dry spring has been advantageous for this beautiful butterfly. This year alone more than 166 sightings of one or more butterflies or caterpillars have been recorded, a record number.
The swallowtail butterfly was once rare in the Gelderse poort and in the rest of the Netherlands. Just twenty years ago, they lived only in South Limburg. In recent years, the big yellow butterflies are seen more and more often and more and more to the north.
Which plants do Dutch caterpillars eat? Here.
Britain: September 2011. More than 300,000 butterflies and moths were counted during the Big Butterfly Count 2011. Butterfly numbers were down this summer. The average number of individual butterflies and moths seen per count dropped by 11 per cent compared to last year’s event. Many species were less abundant. The dismal summer weather, the coldest in nearly 20 years, was undoubtedly to blame. Butterflies need warm conditions to be active, find food and mates and, if female, to lay eggs: here.
May 2012. Butterfly numbers in the UK countryside fell by almost a quarter last summer, according to a new scientific study: here.