288. Cygnus davidi.
Bill vermilion, tip black. Legs orange. Entirely white. Smaller than C. bewicki. Its nearest ally is C. coscoroba of Chili, but it is larger than that. Mr. Horace Vere, of the Indian Salt Revenue, wrote to me from Dera Ghazi Khan on 30.4.92 : "Regarding a Swan I saw and fired at (but failed to kill) in March, 1891, it was neither Bewick's Swan, nor the Mute Swan, nor the Whooper, as it had bright orange legs. This bird is not mentioned in your book on birds, and I fancy it must have been a specimen of Cygnus davidii, mentioned in Hume's book as a possible visitor to India."
Also the genus Chenopis. The Black Swan. One species—a atratus, 40", legs black, bill light scarlet, tips white, and crossed with a broad band of white, Australia (except northern part) and Tasmania.
Also the genus Coscoroba. With lores feathered. One species— C. coscoroba, 40", legs and bill orange-red, plumage white, but tips of primaries black, south of S. America.