The EU Regulation on Nature Restoration will help save numerous butterflies. Currently, Italy is home to 290 butterfly species, the greatest number in the EU. Among them, 18 species (6.3%) are considered at risk of extinction. And the expansion of common butterfly populations and species is one of the three indicators that member states will be required to demonstrate progress on. The other two are the percentage of agricultural areas with high biodiversity and the amount of organic carbon in cultivated soil. Butterflies are key pollinators and serve as a strong indicator of environmental health and balance. How will they be counted? An indicator will be used to track the numerical evolution of butterflies in European meadows and pastures, using data provided by Butterfly Conservation Europe. The index accounts for the populations of 17 butterfly species and is updated once a year with data given to Eurostat, the European statistical office, by EU countries. Citizens also help out, as they are urged to count butterflies along short pre-established stretches while out walking. It is estimated that each volunteer who participates in citizen science monitoring programs can count anywhere from a few dozen to a few hundred butterflies per day.