Dr. E. Hopkinson — Duck-breeding Records



281



Swan Hybrids


Common Swan x Domestic Goose (x Bernacle-Canada Goose

hybrid).


Whooper X Whistling Swan; X Trumpeter; x Domestic

Goose.


Trumpeter x Common Swan.


Black Swan x Common Swan ; X Domestic Goose (abroad) ;

X Canada Goose.


541. Spur wing Goose (Whipsnade, 1933).


Hybrids. X Egyptian Goose ; X Magellan Goose.


542. Muscovy Duck.


Hybrids, x Domestic Duck ; (x Shelduck ?) ; x Egyptian

Goose.


545a. (White-winged Wood-Duck, Asarcornis scutulata ; a hybrid

record only with the female Domestic Duck.)


546. Knob-bill Duck, “ Comb-duck.”


544. Mandarin Duck.


Hybrids. X Carolina Duck ; (x Domestic Duck).


543. Carolina Duck x Spotbill Duck, Zoo ; X Gadwall; X Pochard ;


X White-eyed Pochard ; X Tufted Duck ; ( X Australian

Wild Duck).


545. Cereopsis Goose.


553. (Greylag Goose. ? if true wild birds have ever been bred except


from collected eggs.)


Hybrids. Domestic Goose x Snow-Goose (U.S.A.) ; x Chinese

Goose ; X Egyptian Goose ; (x Muscovy Duck).


557. (Bean Goose, U.S.A.)


Hybrids. Bean Goose X White-fronted Goose ; ( X Domestic


Goose).


554. (White-fronted Goose, Zoo, 1842.)


555. Lesser White-fronted Goose.


Hybrids, (x Bernacle Goose.)


556. Pink-footed Goose.


558. Bar-headed Goose.


Hybrids, (x Shelduck.)



