black duck , coot

animal background beautiful beauty bird birdblack birding birdinwater birds birdswimming black blackfeathers bucharest colorful conservation coot danube day daylight delta detail details duck europe european fauna feathers fulicaatra image lake lakeside life marine marinelife natural nature ornithology outdoor outdoors park photo picture relax relaxation river romania romanian spring summer swim vacaresti vertebrate vibrant wallpaper water waterbird white wild wildlife