An illustration engraved by Robert Havell, Jr. And published in The Birds of America by John James Audubon. 1838.
An illustration engraved by Robert Havell, Jr. And published in The Birds of America by John James Audubon. 1838.
two trumpeter swans (cygnus buccinator), okanagan lake at sunrise, south okanagan valley, naramata, british columbia, canada - 北美洲天鵝 個照片及圖片檔
trumpeter swans (cygnus buccinator) take to the air at sunset above marsh lake during spring migration - 北美洲天鵝 個照片及圖片檔
two trumpeter swans gain altitude as they make their way towards their next destination during spring migration - 北美洲天鵝 個照片及圖片檔