Starling mini-murmurations on Granta Park

In recent evenings, Andy M has been watching 'mini-murmurations' of starlings above the lake in Granta Park. Just before sunset, several flocks each numbering a few hundred birds, start to arrive - each performing their swirling, aerial manoeuvres for several minutes before finally dropping into the reeds.  Over 30 minutes or so, around a thousand starlings had crammed themselves into the reedbed, all chattering noisily before settling down to roost.