Camberwell Beauty (Nymphalis antiopa)
Hail protection network in the Wachtberg fruit-growing area
The net stretched over the fruit trees to protect against hail had a large open area downhill. Insects and birds flew in through it. However, there was no exit on the uphill side; instead, the net ran narrowly at the highest point of the hill and ended in a narrow band. Huge numbers of insects (especially butterflies, dragonflies, flies, wasps and hornets) and even a robin were unable to free themselves from the net and died.