Trumpeter Swans (*Cygnus buccinator*) are the largest waterfowl in North America, and one of the heaviest living birds capable of flight. The largest can reach 28lbs with a wingspan of 10 feet.
Almost rendered extinct due to hunting for their feathers in the 1930s, possibly reduced to only 70 individuals. The discovery of a Pacific population in Alaska allowed for the restoration of the species. As of 2015, the population was estimated at about 65,000 and growing.