hand-drawn black birds. raven, crow, rook, jackdaw

animal beak bird black caw cemetery clipart corbie crow design drawing fauna feather graphic halloween handdrawn hooded icon illustration intelligent isolated jackdaw misfortune mystical nature old omen ominous omnivorous ornithology plumage predator profile raven retro rook scary scavenger set sign silhouette symbol tail vector wild wildlife wing wise witchcraft