THE WHITE JA VA SPARR OW. 69 



with grey, for considerably less. The latter, however, 

 are certainly cross-bred and cannot be relied upon to 

 throw a purely white progeny: nevertheless they will 

 rarely hatch a purely Grey bird, which proves that 

 there is more of the White than of the Blue blood in 

 them. 



The scientific name is Padda oryzivora, var. alba. 



