Unknown flock of birds flying fast

Unknown flock of birds flying fast

Observation - Unknown flock of birds flying fast - UK and Ireland. Description: This small flock of birds flew over heading NW at high speed, and I took them to be starlings until zooming in on the photo they seem very different. Can anyone recognise them please?

This small flock of birds flew over heading NW at high speed, and I took them to be starlings until zooming in on the photo they seem very different. Can anyone recognise them please?