R. H. Thomas 289 



F,. % , "G." (This bird is being bred from, 1913.) 



Breast : Anterior, dark silver grey ; Posterior, dark silver 

 grey vermiculation and mottling on lighter grey ground. 

 Plate XXIV, fig. 11a. 

 Flank: Dark silver grey mottling on slightly paler grey 

 ground. Plate XXIV, fig. 116. 



Degeneration in size of feathers. 



It is to be remarked that the size so diminishes and the form so 

 alters in the breast and flank feathers of two F^ and all the Fi as hardly 

 to be recognised as having been extracted from the same areas as those 

 of the females of the parent species. The pointed form referred to is 

 a male character in both species but much more extreme in the 

 Swinhoe cT. 



Laying the four i^^ M(<e»- se ? $ "A"," "F," "M,""G" breast uppermost 

 beside "B" parent and the female of "A" parent, the Mendelian segre- 

 gation is distinct, $ "K" resembles "B" parent, $ "F" neither parent, 

 whilst $ $ "M" and "C" though hybrid, yet have a strong fixmily 

 resemblance to the female of " A " parent. 



WING. (Plate XXV.) 



Parent Species. 



Primaries. Secondaries. Major Coverts. 



"B," $. Primary: inner vane grey self, outer vermiculated buff 

 Primary Major Covert : similar. 

 Secondary : grey ground vermiculated and mottled buff. 



Plate XXV, fig. 1. 

 Secondary Major Covert: similar. Plate XXV, fig. 10a. 

 "Z," $. Primary: same as "B," colour browner, vermiculation 

 finer. 

 Major Covert : to correspond. 

 Secondary : same as Primary. 

 Major Covert : rather browner vermiculation. 

 "A," $. Primary: wide bands of dark grey divided by narrow 

 bands of warm ruddy buff 

 Secondary: similar pattern, bands of warm ruddy buff 

 narrower. 



