242 H. D. GOODALE 



middle of the back, and greenish black on the rump. x\.ll the 

 gray feathers, scapulars, and the anterior dorsal feathers are 

 vermiculated. The main tail feathers are dull black. A specu- 

 lum of iridescent purple is formed by the major part of the exposed 

 surface of the secondaries. The under side of the wing, not 

 including the remiges, is creamy white. The bill is light greenish 

 yellow. The shanks and feet are orange. The female, (fig. 3), 

 by contrast, is rather plain colored. On the whole she may be 

 described as streaked dark brown and buff. The upper surface 

 is considerably darker than the ventral. The throat and sides 

 of the head are buff with two dark stripes passing across the 

 latter (fig. 4A). There is no neck ring. The speculum and under 

 surface of the wing are the same as in the male. The bill is dull 

 brownish black, with greenish yellow blotches. The shanks and 

 feet are orange. The newly hatched Rouen duckling of both 

 sexes is dull black with two dull yellow stripes on each side of 

 the head and with some dull yellow spots on the body. 



THE Fi GENERATION 



Owing to the method of making the matings the individual 

 mothers of the Fi generation are not known. A Rouen male was 

 placed in a pen of Pekin females and vice versa. There were 23 

 young hatched from both matings, 13 were hatched here in 1909; 

 6 had Rouen mothers, 7 Pekin. The other 10, all Pekin males 

 by Rouen females, were hatched and reared for me by my 

 brother in 1910. Their parents were from my own stock. Of 

 these I personally saw only 5 females as adults. Besides these 

 there were nearly a dozen others from the same matings, but in 

 which the ducklings from the reciprocal crosses were mixed 

 together owing to an oversight at hatching time. 



Fi ducklings. Part of the Fi ducklings belonged to the Rouen 

 type. The remainder had a new type of down. These were dull 

 yellow, very different from the Pekin color, and with an under 

 color of dull black which usually came to the surface on the wings 

 and tail. This type probably represents an incomplete dominance 

 of the Rouen down over the Pekin. The only exceptions to these 



