DECORATION. 



383 



curiously like those whicli we see in our fancy breeds, reared 

 by man for the sake of ornament: certain individuals originally 

 varied in one character, and other individuals of the same species 

 in other characters; and these have been seized on by man 

 and much augmented— as shown by the tall of the fantail-pigeon. 





Pig. 49. Spalhura underwoodi, male and female (from Brehm). 



the hood of the jacobin, the beak and wattle of the carrier, and 

 so forth. The sole difference between these cases is that in the 

 one, the result is due to man's selection, whilst in the other, as 

 with humming-birds, birds of paradise, &c., it is due to the selec- 

 tion by the females of the more beautiful males. 



I will mention only one other bird, remarkable from the ex- 

 treme contrast in color between the sexes, namely the famous 



