bird birds Columba-livia-domestica common domestic-pigeon fancy-pigeons fauna feathers feeders feral flock gregarious iridescence iridescent pests pigeon pigeons plumage plumage-varieties prolific resting roof roofing tiled tiles tiling variations variety abstract alone angles appearances blue clip clipping clothes-peg color colored colors colour coloured colours fasteners fastening grip gripped held help hold household-item light linear lines peg plastic secure security single washing beach coast coastline layers levels ocean pebbles rocks rocky rough sand sea seashore seaside shade shadows shapes ship shore shoreline Sizes stones stony sunlight sunshine water alert appropriate-behavior appropriate-behaviour direction environment expectorate expectorating health health-risk historic-sign no-spitting not-allowed not-permitted old permission-denied pollution prohibited prohibition railway-platform sign spit spitting unhealthy warning building building work carpark construction construction helmet high metal work multi-storey multi-storey carpark pipes railing rails safety safety harness safety helmet safety mesh scaffolding steel scaffolding tall welder welders welding workmen afloat ashore Beached black boat bow clear fresh hull pebble planks prow sky stone tide vessel wave waves white wind windy wood wooden banana-flower banana-leaves banana-tree bananas broad-leaves bunch bunches clusters fingers food fruit green growing hands healthy herbaceous-flowering-plant large musa peel potassium skin staple starchy tiers tropical Unripe aqua azure colorful colourful contrast contrasting heated interior leisure lighting pool recreation reflecting reflection reflections sheltered space swimming-pool turquoise warm atlas barriers book coloring colouring community companionship company concepts cooperation division games-pieces historic historic-atlas map maps notions pages paper representative separation symbolic symbols together togetherness unity background black hole chaos complexity computer generated depth digital eye Fractal graphic growth illustration infinity iris mandelbrot mathematics pattern rainbow repetition science self-similar self-similarity spiral technology texture wallpaper