82 Monograph 0/ the Cranes. 



bone. In this bird the loud resounding voice of the Cranes is wanting, and 

 the voice is described as a " delightful mellow note." 



Steknum or THE Kaffir Crowned Crane. Balearica chrysopelargus. 



Of the Western Crowned Crane, B. pavonina, I can gain no special informa- 

 tion as to the voice, although in Griffith's edition of Cuvier's " Animal 

 Kingdom " it is said to make a noise with its wing (?) somewhat like the 

 sound of a French horn. 



In the true Cranes belonging to the genus Gi-us we are informed by Mr. 

 A. 0. Hume that one species, the Asiatic White Crane [G. leucogeranus) , 

 differs remarkably from all the other species in its trachea not being 

 convoluted nor entering into a cavity in the breast bone ; that its note is, for 

 for so large a bird, a mere chirrup, and even when most alarmed, and 

 soaring round and round, the cry is very feeble as compared with that of 

 any other of the Cranes. 



In the Stanley or Paradise Crane, the blue Crane of South Africa 

 {Q. ■paradisea) the keel is hollowed out into a cavity open at the sides, as 

 shown in the foUowino- sketch from a sternum in the Museum of the 



Steknum of Stanley Crane. Orus virgo. 



University of Cambridge. The margins of this cavity are deeply grooved 

 for the reception of the trachea, which is disposed as shown in the following 

 figure, which is copied from a drawing by Yarrell in the fifteenth volume of 



