Got up this morning and looked out of the back window into the garden. Gathered around the two bird feeders (which contain sunflower hearts) were Rooks, up to no good.
Five adult Rooks were on the ground underneath the feeders, with a juvenile Rook (a rookie Rook? or a Rooklet?) squawking from the fence. A seventh, adult, Rook was clinging onto the pole that the feeders are suspended from, jabbing its bill into the feeder, filling its crop with seeds, and scattered more onto the ground.
I like Rooks, but I think the feeders will be empty by the time I get home from work.