little gulls on field of water chestnuts in danube delta

balta bat bicornis bird birds buffalo calm caltrop canal chestnuts colony danube de delta devil dunarii europe european fauna fertile field flora floral ghimpe green gull gulls hydrocoloeus kio kok landscape larus lin ling little minutus mustache natans native natural nature nut outdoor outdoors placid plant plants pod quiet river romania romanian scenery scenic seagull seagulls season seasonal singhada species stilled summer surface trapa trapaceae vegetation water watery weather wild wilderness wildlife