4G 
in Scotland and in England, from flocks varying in number from 
seven to thirty. 
Mr. Yarrell also informs us that hitherto he was only acquainted _ 
with the bird as an article of commerce among the London dealers © 
in live birds, who distinguished it by the name of the Polish Swan. — 
CYGNUS ATRATUS. 
Oyg.—Niger, cinereo undulato. 
BLACK SWAN. 
Length wirecccrsseeese 4 2 Outer COE .r.rsercececves 4} 
BP CUT RE sks iespitncisnaaes 4} PWNOY C06. 25s cu eoedaate of 
CENtre FOE srerervecere 5 Pind 406: ony 20 svceaenne 3 
Black, with the edges of the feathers cinereous; quills, secondaries, 
and greater coverts white, tipped with black ; bill carmine red, marked 
transversely near the tip, with a white band; nail white; legs and 
feet dark yellowish ash, with the webs darkest. 
ANAS ALTALA cecevecveeroesccreers Lath. Ind. Orn. 2. 834. 
ANds plUtonid sieccceresssereeee Shaw, Nat. Mise. pi. 108. 
CYGNUS ALTATUS — sscecacseeceene Steph. Sh. Zool. 12. 18. 
Black Swan ...ccccoccseeseeee «» Lath. Gen. Syn. Sup. 2. 843. 
Lee Cygne 20tr .e.eoecercscaveces Cuv. Reg. An. 1. 529.  - 
PVACROE cicviedecasncascte eee es Linn. Trans. vol. 15, tab. 12. 
Entirely an Australian species. The tube of the trachea does 
not enter the sternum, but is attached to the os furcatum by a liga- 
ment; in other respects the anatomy resembles that of the true swans. 
CYGNUS NIGRICOLLIS. 
Cyg.—Albus; capite colloque atris. 
BLACK-NECKED SWAN. 
White swan; with the head and neck black. 
Leng tlie Becsicccisive 48 BES. cova oe are 
