of a crow. sketched little raven

air alone and animal animalistic art artistic avian beak beautiful beauty big bird black contour corbie crow dove draw drawing etching feathers flier flyer flying fowl free freehand graphics gulls hand hawk illustration isolated kite life line linear little monochrome nature ocean one outline painting pen pencil pigeon portrait raven realistic sea seabirds seagull silhouette sketch sketched stroke style vector vintage vulture waterfowl white wild wildlife zoo