...First is the meatclass which consists of the Pekin, Aylesbury, Muscovy,Rouen, Buff, Cayuga and Blue Swedish... 
Harry M. Lamon 「Ducks and Geese」
...The Aylesbury duck has never proved to bevery popular in the United States perhaps due to itswhite bill and skin, although it is the popular marketduck of England...
Harry M. Lamon 「Ducks and Geese」
...The Aylesbury and the Rouenare about alike in laying ability, neither being quiteas good as the Pekin...
Harry M. Lamon 「Ducks and Geese」
...The Cayuga is a good layerranking with the Aylesbury and Rouen or betweenthese and the Pekin...
Harry M. Lamon 「Ducks and Geese」
...The back line ofthe Aylesbury should be straight, showing no tendencytoward a slight concavity as in the Pekin...
Harry M. Lamon 「Ducks and Geese」
...The Aylesbury is notquite as nervous a breed as the Pekin...
Harry M. Lamon 「Ducks and Geese」
...It is slightly smallerthan the Pekin, Aylesbury and Rouen, averagingabout a pound less...
Harry M. Lamon 「Ducks and Geese」
...They are long and broad in bodywhich is carried in a horizontal position but are notso deep in keel as the Pekin, Aylesbury or Rouen...
Harry M. Lamon 「Ducks and Geese」
...Pekins and Aylesbury can bemated in the proportion of one drake to 6 to 8 ducks...
Harry M. Lamon 「Ducks and Geese」
...There are several sub-breeds:—(1) The Aylesbury, of great size, white, with pale-yellow beak and legs; abdominal sack largely developed...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
... This gentleman, as he informs me, crossed a white Aylesbury drake and a black Labrador duck, and some of the ducklings as they grew up assumed the plumage of the wild duck...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Twelfth cervical vertebra of Aylesbury Duck, viewed laterally...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The Aylesbury duck has fifteen cervical and ten dorsal vertebræ furnished with ribs, but the same number of lumbar, sacral, and caudal vertebræ, as far as could be traced, as in the wild duck...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...I examined the bony enlargement of the trachea in the males of the Penguin, Call, Hook-billed, Labrador, and Aylesbury breeds; and in all it was identical in shape...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The Pelvis is remarkably uniform; but in the skeleton of the Hook-billed duck the anterior part is much bowed inwards; in the Aylesbury and some other breeds the ischiadic foramen is less elongated...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...In a large Aylesbury duck, on the other hand, the tibia was the only bone of the leg which relatively to the other bones was slightly lengthened...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...This variety has a yellow-orangebill; that of the Aylesbury should be flesh-colored...
Robert Jennings 「Sheep, Swine, and Poultry」
...At the poultry exhibition at Boston in 1849 the only kindsexhibited were the Aylesbury, the Muscovy, and the ornamental Woodducks...
John H. Robinson 「Our Domestic Birds」
...The Aylesbury Duck is a large white duck developed as a local variety inthe vale of Aylesbury, in England...
John H. Robinson 「Our Domestic Birds」
...It washardier and more prolific than the Aylesbury, and was used largely inoutcrosses, to give vigor to Aylesbury stock...
John H. Robinson 「Our Domestic Birds」
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