夕阳下的椋鸟，英格兰布莱克浦 Starlings at sunset in Blackpool, England (© Mediaworld Images/Alamy)

夕阳下的椋鸟，英格兰布莱克浦 Starlings at sunset in Blackpool, England (© Mediaworld Images/Alamy)

Mesmerizing murmuration

Around this time of year, as temperatures dip in the Northern Hemisphere, European or common starlings put on a dazzling show. Most of the time, these noisy birds are scorned for their bullying behavior at the birdfeeder. But in autumn months, they gather to roost in huge flocks, like here in Blackpool, England. At dusk, the starlings take flight en masse and flock together in a hypnotizing, swirling cloud of fluttering wings. This behavior is called mumuration. It's thought to help keep the birds warm while also acting as a defensive tactic to confuse predators like hawks and falcons. But maybe the raptors are just awestruck by the starlings' synchronized spectacle like the rest of us.