Marsh tit (Parus palustris) searching for food on centuries-old Beech (Fagus sylvatica) tree bark in Coppo del Principe old-growth beech forest during a winter snowfall. Abruzzo, Lazio and Molise National Park / Parco Nazionale d'Abruzzo, Lazio e Molise UNESCO World Heritage Site, Pescasseroli, Italy. March.