I am again up in Warwickshire (wet and windy). Today two things caught my attention – one was fields that are yellow with buttercups. The other was field of grass that instead of buttercups was full of black rocks feeding. I wondered if maybe the rain had brought a lot of worms and beetles etc close to the surface of the grass and whether that was attracting such a number of birds.
“Worms, beetles and other invertebrates are the rook’s main food, which it catches by probing the ground with its large beak. It will also feed on grain, fruit, acorns and occasionally carrion and birds’ eggs.” https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/animals/birds/rook/
The Green Tau 