trumpeter swans (cygnus buccinator) taking off from wetland, riverlands migratory bird sanctuary, st charles county, missouri, usa - 北美洲天鵝 個照片及圖片檔
Two Trumpeter Swans fly near one another June 4, 2006 in Barrow, Alaska. Officials from the U.S. Department of Agriculture are preparing to test...
Trumpeter swans swimming on the water at Juanita Bay Park, Lake Washington in Kirkland, Washington State, USA.
trumpeter swans (cygnus buccinator) flying with teton range in background, harriman ranch, idaho, usa - 北美洲天鵝 個照片及圖片檔
trumpeter swans (cygnus buccinator) wading in henrys fork river on harriman ranch, idaho, usa - 北美洲天鵝 個照片及圖片檔
trumpeter swan ( cygnus buccinator) preening, ottawa national wildlife refuge, oregon, ohio, usa - 北美洲天鵝 個照片及圖片檔