detail portrait of raven hidden in grass. black bird raven with open beak sitting on the meadow. close-up of black bird with thick

animal avian beak bill bird birding birdwatching black blackbird cliff closeup common corax corvus crow dark death deatil detail fauna feather germany grass green grey head hidden intelligent legs looking meadow mountain mystical nature open ornithology outdoor plumage portrait prey raven scary sinister sitting stone tail talon thick watching wild wildlife wing with