86



Dr. E. Hopkinson—Duck Hybrids



Rosybill Duck x Pochard. (Roth, Kinn.)

c. „ ,, X Tufted Duck. (Roth.)


„ ,, X Carolina. (Roth.)


„ ,, X Comb Duck (Sarkidiornis). (Roth.)


And with males of the Wild Duck, Australian Wild Duck, Red-

crested and White-eyed Pochards.


a. Pochard x Wild Duck.


b. „ x Red-crested Pochard.


c. ,, x White-eyed Pochard.


d. ,, x Scaup (?).


„ X Lesser Scaup. (Roth.)


e. „ x Tufted Duck.


f. ,, X Carolina Duck.


And with males of the Red-crested Pochard, Rosybill, and Tufted

Duck.


American Pochard with males of the Lesser and Ring-necked

Scaups.


a. White-eyed Pochard X Carolina.


b. ,, ,, x Rosybill.


c. ,, ,, x Marbled Duck.


d. ,, „ x Tufted Duck.


And with males of the Pintail, Marbled Duck, Pochard, Red-

crested Pochard, Scaup, and Tufted Duck.


a. Common Scaup x Lesser Scaup.


b. ,, ,, # X White-eyed Pochard (?).


,, ,, X Canvasback Duck.


And with the male Pochard.


a. Lesser Scaup X American Pochard (?), and vice versa.

a. Ring-necked Scaup X American Pochard (?).


a. Tufted Duck X Pochard. (Kinn.)


b. ,, „ X White-eyed Pochard.


c. ,, „ X the above hybrid.


And with males of the White-eyed Pochard, Rosybill, Wigeon,

and Carolina Duck.


Canvasback Duck with the male Common Scaup.



