Trumpeter swan Trumpeter swan The trumpeter swan ("Cygnus buccinator") is a species of swan found in North America. The heaviest living bird native to North America, it is also the largest extant species of waterfowl with a wingspan that may exceed . It is the American counterpart and a close relative of the whooper swan ("Cygnus cygnus") of Eurasia, and even has been considered the same species by some authorities. By 1933, fewer than 70 wild trumpeters were known to exist, and extinction seemed imminent, until aerial surveys discovered a Pacific population of several thousand trumpeters around Alaska's Copper River. Careful reintroductions
Trumpeter hornbill storage (similar to the excessive iron storage seen in the disease hemochromatosis in humans). They are very intelligent and have a life expectancy of up to 20 years. Widespread throughout its large range, the trumpeter hornbill is evaluated as least concern on the IUCN Red List of Threatened Species. Trumpeter hornbill The trumpeter hornbill ("Bycanistes bucinator") is a medium-sized hornbill, with length between , characterized by a large grey casque on the bill, smaller in females. The eyes are brown or red, with pink surrounding skin. Body mass is between . It is similar to silvery-cheeked hornbill. Distinguishing features include