barbed wire barbwire clouds curl curve danger diagonal fence gate get off iron metal no access razor wire security sharp sky stay away stay out asbestos attention beware black building yard construction area directions do not enter finger gesture glove hand icon illustration industrial logo pictogram sign signs thumb warning away blue keep limit out pole post signpost stay animal animals area closed emergency enter entry go lonely military no tresspass tresspassing wild alert announcement be-careful blocked blocked-path care careful caution communicating communication detour directing direction go-around informing lookout observant observe pedestrians safety watch watch-out yellow access-denied access-limited advice appropriate-behavior appropriate-behaviour barrier behave behavior behaviour cautious communicate denied entry-denied entry-prohibited keep-out no-access no-entry not-allowed not-permitted permission-denied prohibited prohibition red restricted restriction restrictions cars concern dangerous directional lanes left lefthand-lane Look looking message risk risks road road-rules traffic traffic-flow vehicles white birds cat hunt pets winter canada geese colorado dusk eveing goose lake lakes mountain range park reflections sea summer sunset twilight water waters abstract Australia beach bikinis board kites christmas fun gum leaves holiday paint sails southern hemisphere surfboard swim tropical vacation women xmas