A quick bit of corvid behavior for the new year:

Two crows, one up on a telephone wire and the other below. The one above dropped a largish piece of gravel on the one below, then flew down. The one below siezed the gravel in its beak, flew to the other's place on the wire, and then dropped the gravel on it. They exchanged places several times while I watched, before they flew off startled by a car.