9 



or insufficiently marked stock-birds are mated, the progeny show* 

 only a grey grizzled patch, which, although it may be of the right 

 shape and size, is a long way behind the desired typical dark cap. 



It may also interest the reader that Hartz Mountain Rollers are 

 not the only good song birds coming from Germany. In the same 

 way as excellent Norwich Canaries are bred in London, so are the 

 finest Rollers trained in many districts of Germany besides the 

 Hartz. St. Andreasberg has established a great reputation for pro- 

 ducing prize song birds, but other breeding centres have not stood 

 still, and the prize winners are not all Hartz birds. " The Hartz 

 Mountain stamp of Canary " would be a more correct description 

 when best quality is referred to. 



