Tundra and Whooper Swans
 
Tundra Swans (seen in this photo with a single rare Eurasian Whooper swan) are often seen during the winter months in the tens of thousands in the flooded farm fields and open wetlands on Lower Klamath Refuge.

Dave Menke, Lower Klamath National Wildlife Refuge, Siskiyou Co, Ca. (White Lake Unit)