“…The Trumpeter Swan, the largest of North America's native waterfowl, and the largest of the world's seven swan species, was formerly widespread in northern North America, certainly on the western half of the continent, and in much of the east (Banko, 1960;Lumsden 1984). The original population was vastly reduced by subsistence harvesting and habitat change, and likely by the massive 19 th century harvest of swan skins and quills (Houston and Houston, 1997). In the early decades of the 20 th century, the species was thought to be on the verge of extinction due to the very low numbers known to exist -at one time thought to be fewer than 70 birds in the wild (Mitchell and Eichholz, 2010).…”