Graffiti-art style pictures of butterflies on walls around the centre of Trier. The placings of the paintings made it clear they had been executed with official support.
Large white butterfly caterpillars, notorious for the depredations they can make on cabbages and the like. These were, for a change, eating away at the leaves of Jack by the hedge (aka garlic mustard) plants.
By early June, the first coot chicks were well enough grown to go off swimming on their own. They were still making plaintive cries to get the parents to feed them
When I last visited West Park, back in early June, the sole surviving Canada goose gosling was growing rapidly, but was still being guarded by the parents.