20 small Crawdads aka Crayfish, mud bugs
These crawdads showed up in our ponds and we do not know much about them.
They are very good eating and the fish market wants all the adults we can deliver.
The signal crayfish is a North American species of crayfish. It was introduced to Europe in the 1960s to supplement the Scandinavian Astacus astacus fisheries, which were being damaged by crayfish plague, but the imports turned out to be a carrier of that disease. Wikipedia