beach closeup of driftwood driftwood driftwood detail weathered wood wood closeup sand sea wood crocodile sky plant rock Soil tree trunk bleached wood Bull Island dead tree tree trunk bank beaver beavers beavers dam dam river shelter tres abstract coast coastline container frame lancing plank salvage shoreham Sussex timber wave worthing b&w background black bw drift grain grains pebbles sveres texture weathered white wooden worn debris flotsam jetsam nature sculpture beak bird canada Corvidae curious feathers feet natural raven scavenger