Swans Fly in the Cloudy Sky of Niigata

Canon EOS 6D, Tamron SP 70-200mm F/2.8 Di VC USD (200mm, f/2.8, 1/160 sec, ISO-400)

It is cloudy and sometimes rainy today. I found many swans on the paddy field of Niigata so I tried to take photos of them. But once I approached a bit to a group of swans, they suddenly started to fly. It happened three times in a row so I finally gave up. The sizes of the swans were small like this even with the focal length of 200mm. They must be quite cautious here.