It's that time of year when, if you're in the right place at the right time, you might spot a spectacular aerial display by one of our declining bird species.
Starling murmurations create extraordinary patterns in the sky as the birds find a place to roost for the night.
ITV News Anglia filmed one display at sunset in Strumpshaw near Norwich.
- Click to watch a report by ITV News Anglia's Kate Prout
Despite the vast black clouds of birds spotted in the sky, starling numbers have declined by more than 70% in recent years and are now on the 'most at risk' list.