Trumpeter swan the park which have not mated in years. Scientists attribute the loss in the park's population to the loss of nests and nesting sites because of spring flooding caused by climate change. 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.
Trumpeter hornbill 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 an all-black back, white belly and white underwing coverts (in flight, wings present white tips), and red facial skin. The trumpeter hornbill is a gregarious bird, usually living in groups of two to five individuals, although sometimes as many as fifty. This hornbill is a locally common resident of