This ghostly creature landed on my window earlier this month. They usually fly in July and August, but occasionally they have a second generation that flies in October. Photograph: E. HandThe birch trees in the local park have these large nest-like structures in the branches. Patricia Mc GoldrickIt is indeed a spider – a large four-spotted orbweb spider, Araneus quadratus. [ Two dragonflies tied up in afternoon delight in CorkOpens in new window ]Bat droppings on the windowsill of a house in Kilcornan, Co Limerick.