Wildlife experts believe they have solved the mystery of why hundreds of starlings died after smashing into a road.
It appear the flock of starlings was swooping in formation to avoid a bird of prey.
More than 300 starlings dived to dodge the predator but failed to fly back up in time.
Dafydd Edwards, 41, filmed the birds after his girlfriend found them in the lane in Anglesey.
The flock of starlings was acting in unison in "murmuration" when they hurtled towards the ground.
Mystified investigators were left "scratching their heads" after finding scores of bloodied starlings in the lane on Anglesey, North Wales.
Announcing the findings of the investigation on Twitter, Rob Taylor, team manager at the rural crime team, said: “Please bear in mind that the full toxicology has not been received, so a final theory cannot be confirmed, but we are quite sure of the reasons and cause of deaths to the birds.
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“The trauma supports the case that the birds died from impact with the road. It’s highly likely the murmuration took avoiding action whilst airborne, from possibly a bird of prey, with the rear of the group not pulling up in time and striking the ground.
In December 2019, 225 birds were found near Llyn Llywenan in Bodedern with “many others” on a hedge on the side of the road - but none in the nearby fields.