Map Butterflies

A number of Map butterflies are sitting on a post, watching for upcoming rivals or females. I have no clue yet. Even the bigger Red Admiral is not at ease. 

5/2017 - Mechelen (B)
5/2017 - Mechelen (B)

Each year, during late April or early May these Map butterflies gather on a sunny and almost breezeless spot, next to a busy motorway. Stinging nettles make my work pretty harsh. ;<)

5/2017 - Mechelen (B)