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The Silver Appleyard Duck is a breed of domestic duck.〔() Holderread, Dave. Storey's Guide to Raising Ducks. Pownal, VT: Storey Communications, Inc., 2001〕 Only 128 breeding Silver Appleyard Ducks were reported in a 2000 census of domestic waterfowl in North America. Of five people breeding this variety in North America, only one had a primary breeding flock in excess of fifty individuals.〔() Bender, Marjorie E. F. D. Phillip Sponenberg, and Donald Bixby. Taking Stock of Waterfowl: The Results of the American Livestock Breeds Conservancy's Domestic Duck and Goose Census. Pittsboro, NC: The American Livestock Breeds Conservancy, 2000.〕 It may be more common in the United Kingdom.〔() Kintaline Farm Poultry and Waterfowl Centre, Argyll, Scotland〕〔() e-Chickens.com〕 This breed is sometimes called the Large Appleyard in contrast to the diminutive form of this breed known as the Miniature Appleyard developed by Tom Bartlett of Folly Farm in the 1980s.〔〔() Feather Site: Silver Appleyard Duck〕 ==Description== The Silver Appleyard Duck is a "large, sturdily built duck" with a "blocky" physique and a prominent breast. When full grown it weighs between six and eight pounds.〔() Holderread, Dave. Breed Bulletin #8504: Silver Appleyard Ducks. Corvallis, OR: The Duck Preservation Center, 1985.〕 Drakes of this breed have a yellow or greenish-colored bill which sometimes takes on a striated appearance when the duck is older. The drake has a chestnut red breast, flank, sides, and shoulders with white "frosting and lacing" and a "creamy or silvery white" underside. Drakes' wings are gray and white with a cross-stripe of bright blue. Their tail feathers are a dark bronze color. Feet and legs are orange.〔 The Silver Appleyard Duck hen has a yellow or orange bill with a black "bean". Plumage is whitish with markings in various shades of brown and gray. Her legs are yellow or orange with dark toenails and she, like the drake, also has wings marked with a blue cross-stripe.〔 The British Waterfowl Standards book lists criteria for an ideal example of this breed including (but not limited to) criteria such as:〔 *A well-rounded head feathered in iridescent green over brown black *A slightly erect, alert and busy carriage *A rump which is brown black with a slight iridescence, laced with white *Legs that are set slightly back and well apart *A medium length bill that is not wedge-shaped and that rises in a gentle curve to the brow *Dark brown eyes 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Silver Appleyard duck」の詳細全文を読む スポンサード リンク
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