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 whiting species was first scientifically described by Quoy and Gaimard in 1824 from specimens collected from the waters of Sydney Harbour in New South Wales, Australia. A specimen from this location was also designated to be the holotype. The species was subsequently redescribed under the name of "Sillago gracilis" by Alleyne and Macleay in 1877, which is a junior synonym and has been discarded under the ICZN rules. Roland McKay, whilst working on a revision of the sillaginids, found there to be three closely related species of 'trumpeter whiting'; the western trumpeter whiting, the oriental trumpeter whiting and the trumpeter whiting