Konstantin Mikhailov / Trumpeter Swans (Cygnus buccinator) on lake, during migration through Denali mountainous tundra area, Denali Road in Alaska, North America. September.

Konstantin Mikhailov / Trumpeter Swan (Cygnus buccinator) on water during migration through Denali mountainous tundra area, Denali Road in Alaska, North America. September.

Marie Read / Wood Duck (Aix sponsa), male on water with autumn colour reflected in water, Ohio, USA