Common checkered skipper in the field
The only vegetation flourishing in the dry field are fennel plants, dandelions and a dandelion-like aster relative.
The butterflies are there all day, like this skipper. It is perched on fennel seeds.
Here is the same skipper on a dried dandelion-like aster plant.
Apparently this plant is from the aster family. It looks like a dandelion, but leaves and stems are covered in little spines.