cygnus buccinator造句

• In winter, the Pacific Northwest draws an estimated 80 percent of the country's trumpeter swans, known scientifically as Cygnus buccinator.
• Trumpeter swans ( " Cygnus buccinator " ) and Canada geese ( " Branta canadensis " ) often depend on beaver lodges as nesting sites.
• For example, the trumpeter swan ( " Cygnus buccinator " ) is threatened in the state of Minnesota, while large populations still remain in Canada and Alaska.
• While it is usually rather lighter than the waterfowl, after the trumpeter swan ( " Cygnus buccinator " ), the turkey has the second heaviest maximum weight of any North American bird.
• On December 23, 1998 a small flock of four trumpeter swans ( " Cygnus buccinator " ) were re-introduced to the refuge when they flew from Sudbury, Ontario accompanied by an ultra-light plane.
• Great blue herons ( " Ardea herodias " ), black oystercatchers ( " Haematopus bachman " ), and numerous shorebirds are found along the shore and in winter, the islands are home to trumpeter swans ( " Cygnus buccinator " ), Canada goose ( " Branta canadensis " ) and other waterfowl.