It’s no accident that Italy used to be many countries, as we discovered on a recent road trip around northern Italy. Even that subset of Italian landscapes is full of stunning contrasts. Mountains and sea and thousands of years of diverse horticulture create different environments wherever you go. The climate on the east of the Italian peninsula is drier and different to that on the west. The north is more influenced by the climate of the continent and the Alps. The south is bathed in Mediterranean waves and the Sirocco wind from the Sahara. Of course much is shared, and the swallows are certainly unfazed by such changes. For them…