eurasian rook feeding on plowed field

animal appetitive arable beak behavior behaviour bird birds birdwatching black bloodworm brandling carrion catching corvids corvus crow crowing dew diet drives earthworms eat eating ecology environment ethology eurasian feeding field food foraging frugilegus hexicology into land lawn lumbricus meadow ornithology park ploughing plowed plowing rainworm raven rook rooks scavenger searching seeking soil terrestris wildlife wintering worm