332 BIRD BEHAVIOUR 



but this is the case with the hybrid between Ruddy- 

 Sheldrake and Egyptian Goose {Chenalofex agyp- 

 tiaca), which favours the former ; between the Pope 

 Cardinal-Finch {Paroaria dominicana) and Red- 

 crested Cardinal {P. cucullata), which follows the 

 latter ; and with hybrids between domestic Fowls 

 and other birds, such as the Pheasant, Guinea- Fowl, 

 and Peacock, in all of which the coloration is purely 

 that of a Fowl or nearly so, so far as I have seen. 

 Specimens may be studied at South Kensington. 



When the colour is thus dominant, however, the 

 shape and size incline more to that of the recessive 

 parent ; thus, the very rare Peacock-Fowl hybrid 

 shown recently at the Zoo was a most obvious 

 Peacock in size and general shape, though in ac- 

 cordance with the general rule of the "cancelling 

 out" of different decorations, it never developed 

 train or crest any more than comb, hackles,' or 

 wattle. The Cardinal hybrid had the short head- 

 feathering of the Pope, not the long peak-crest of 

 the other parent. 



When two species of Ducks, one with an undress 

 plumage in the drake and the other withou-t, are 

 crossed, the undress is dominant and such a phase 

 occurs in the hybrid, as is well seen in that be- 

 tween the Rosy- billed Pochard (Metopiana pepo- 

 saca), which always retains masculine plumage, and 

 the Red-crested Pochard with its very distinct 

 eclipse. I note, however, that in a hybrid between 

 the Red and Green Jungle- Fowls now in the Zoo 

 th^r? ip no " ^n^r^ss " «?ck-fe^thering assumed, 



