Three large white butterflies were around the same buddleia bush as the red admirals, with several other large whites fluttering elsewhere in the Wightwick Manor gardens. The three spent a little time interacting in flight. It wasn’t clear (at least to me) whether they were jousting for control of territory, or sizing each other up as potential partners.
Perhaps neither. They suddenly broke off, all landing on the buddleia and starting to busily eat from the flowers. Two were even on the same flower head.