large black raven corvus corax among blueberry bushes on a mountainside

bird black raven corvus perched large nature wild feather natural wildlife beak animal crow common ornithology corax prey scavenger rook grass habitat background wing witchcraft unkindness closeup field white avian plumage predator pest control fells perch perching eye lake district corvid family blueberry bushes mountainside carpathian mountains dark silhouette fauna mountain landscape among mountainswild