Each winter, Rome’s twilight sky transforms into a living canvas as tens of thousands—sometimes over a million—migratory starlings perform mesmerizing synchronized flight patterns. This seasonal spectacle, known as “murmuration,” draws awe and surprises both residents and tourists. But it also brings logistical challenges and concerns for city officials.

Starlings are small, highly social birds (about 20 cm long) that flock in vast numbers. The phenomenon of murmuration refers to their breathtaking aerial displays: large flocks sweeping and swooping in unison, darting across the sky in ever-shifting formations. These patterns may resemble dark, swirling clouds, briefly turning the sky black

Researchers have found that each starling coordinates with about seven nearby birds, creating instantaneous, wave-like movements across the flock. Importantly, the flock remains leaderless yet highly coordinated, reacting collectively to environmental stimuli—especially to evade predators like falcons.

However, the dazzling display has a grim side. Rome’s pathways, cars, and statues are often doused beneath thick layers of starling droppings—slippery, stinky, and messy. Some residents even carry umbrellas while walking under roosting trees to avoid a messy surprise.READ MORE BELOW