...The loss of the trumpeter swan (Olor americanus) will not beso great, nor felt so keenly, as the blotting out of the whoopingcrane... 
William T. Hornaday 「Our Vanishing Wild Life」
...Wild turkey, Eskimo curlew, whooping crane, trumpeter swan, whitepelican, passenger pigeon; bison, elk, antelope, white-tailed deer,black bear, puma, Canada lynx, gray wolf, beaver, porcupine...
William T. Hornaday 「Our Vanishing Wild Life」
...Their nesting habits and eggs arethe same as those of the Whistling Swan...
Chester A. Reed 「The Bird Book」
...The othersreturned no more; but whether they met theirdeath from duck and swan shooters in the marshes,or had followed the great river down to the sea,forgetting their home, was never known...
W. H. Hudson 「Birds and Man」
...I inquired what luck they were having and they complained that since the timber had been cut around Swan Pond there were no den trees for coon or possum and they were all gone...
Eldred Nathaniel Woodcock 「Fifty Years a Hunter and Trapper」
...When we know that the sparrow has only nine, and the swan twenty-three cervical vertebræ, we need feel no surprise at the number of the cervical vertebræ in the fowl being, as it appears, variable...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The margins of these feathers are rendered plumose by the divergence of the barbs and barbules, so that they resemble in some degree those on the back of the black Australian swan...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...This bird figures under a variety of aliases: Knob goose, Hong Konggoose, Asiatic goose, Swan goose, Chinese Swan Guinea goose, Polishgoose, Muscovy goose, and, probably, others...
Robert Jennings 「Sheep, Swine, and Poultry」
...Chief among these were eagles and vultures of uncommon size, the wild goose, wild duck, and the majestic swan...
R.M. Ballantyne 「The Dog Crusoe and his Master」
...It is sometimes called the MuteSwan, to distinguish it from the Whistling Swan, which is a very similarkind not bred in domestication...
John H. Robinson 「Our Domestic Birds」
..." Some people acquainted with the habits of swans declare that theswan is more vocal when dying than at any other time in its life...
John H. Robinson 「Our Domestic Birds」
...Neither is the black swan all black...
John H. Robinson 「Our Domestic Birds」
...Although it has been bred in captivity forcenturies, the swan is not fully domesticated...
John H. Robinson 「Our Domestic Birds」
...In England in old times the swan was used as food by the wealthy, butits use for this purpose ceased long ago...
John H. Robinson 「Our Domestic Birds」
...The colder parts of America do notafford conditions favorable to swan culture...
John H. Robinson 「Our Domestic Birds」
...As long as there wereblack sheep in the world, I don’tsee why there shouldn’t havebeen Black Swans, do you?...
Various 「Birds Illustrated by Color Photography [February, 1898]」
...It is a curious coincidence that thisbiographical sketch should have beenwritten and a faithful portrait for thefirst time shown on the two hundredthanniversary of the discovery of theBlack Swan...
Various 「Birds Illustrated by Color Photography [February, 1898]」
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