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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.
What Is a Starling Murmuration?
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.
Venice Meets Rome: Why the Eternal City Hosts These Flocks
Venice Meets Rome: Why the Eternal City Hosts These Flocks
Starling murmurations | Yorkshire Wildlife Trust
Between October and February, migrating starlings from Northern Europe—Germany, Hungary, even Russia—flock to Rome, drawn by its milder urban microclimate and reliable roosting trees.
Experts estimate the city receives between 500,000 and one million starlings each winter, with each dusk bringing waves of murmuration.