Aylesbury

The Aylesbury is a heavy domestic duck developed in England and named for the town of Aylesbury in Buckinghamshire. It is one of the best known white ducks in the world, recognised by its pure white plumage, a horizontal body carried low to the ground, and a long pinkish-white bill that distinguishes it from most other white breeds.

For much of the nineteenth and early twentieth centuries the Aylesbury was the standard market duck in Britain, raised in large numbers for the London trade. It was bred for size, rapid growth, and pale flesh and skin rather than for egg production. Mature drakes commonly reach around 4.5 to 5 kg and ducks around 4 to 4.5 kg.

The breed is calm and gentle by nature, with low energy compared with lighter ducks. It is heavier and less inclined to fly, which renders it manageable in a yard or smallholding. Purebred Aylesburys are now uncommon and the breed is considered rare in its original form, with many birds sold as Aylesburys being white commercial crosses.

Who it suits

The Aylesbury suits keepers who desire a placid, ground-based duck and possess sufficient space for a heavy bird that requires clean water and shelter. Its docile nature renders it a reasonable choice for families and for persons new to duck keeping, provided they understand it is a meat-type breed and not a high-volume egg layer. Those with an interest in conserving traditional poultry breeds may find value in maintaining purebred stock, which is considerably harder to obtain than white commercial hybrids.

White ducks have been raised in the Vale of Aylesbury in Buckinghamshire since at least the eighteenth century. Cottagers in the area kept ducks in their homes and yards and supplied the growing London market, sending birds to the city by road and later by rail. The trade was concentrated in the town's Walton district, which became closely associated with duck rearing.

Through the early nineteenth century breeders selected for size, a pale bill, and white flesh and skin, qualities valued by London buyers. The local water and soil were sometimes credited with the bird's pink bill colour, though selective breeding was the principal determining factor. By the middle of the century the Aylesbury was established as a distinct breed and dominated the British duck trade.

The Aylesbury was among the breeds exhibited when organised poultry shows began in Britain in the mid nineteenth century, and a breed standard was established to describe the ideal type. Show birds were bred toward a deep, low, boat-shaped body and a very pale bill, which gradually separated exhibition lines from the working market ducks.

From the late nineteenth century the Aylesbury faced competition from the imported Pekin duck, which grew quickly and bred well. Many keepers crossed Aylesburys with Pekins or transitioned to Pekin-based commercial stock, and pure Aylesbury numbers declined. Both World Wars and changing agricultural practices reduced traditional duck keeping further.

Today the purebred Aylesbury is rare. Conservation-minded breeders maintain small numbers, whilst the great majority of white table ducks sold under the Aylesbury name are commercial white hybrids rather than the original breed.

The Aylesbury is built long, broad, and deep, with a body held nearly horizontal and a keel that can almost touch the ground in well-bred exhibition birds. The plumage is pure white throughout. The most distinctive feature is the bill, which is long and straight and of a pale pinkish-white to flesh colour, unlike the orange or yellow bills of most other white ducks. The legs and feet are orange.

Coat and colours

Aylesburys are available in white only. The feathers should be clean white with no yellow or cream tinge, which is one reason keepers attach importance to clean bathing water and dry bedding. Drakes and ducks appear alike apart from size and the drake's curled tail feathers, so birds are often sexed by voice: the duck produces a loud quack whilst the drake makes a quieter, raspier sound. Ducklings hatch with pale yellow down before developing white adult plumage.

The Aylesbury has a quiet, even temper. It is friendly toward keepers it knows and rarely aggressive, and its heavy build means it spends most of its time walking and foraging rather than flying or running. Within the home flock it is sociable and settles well in a mixed group of ducks. With strangers it tends to be cautious rather than nervous, and birds handled regularly from a young age become tame and easy to manage.

With other animals the Aylesbury is generally peaceable, though like any duck it can be stressed or injured by dogs and cats that chase it. Drakes are usually milder than those of lighter, more active breeds. The ducks are not especially loud day to day, but a duck will quack clearly when alarmed. Their low energy makes them less prone to escaping than flighty breeds, as they cannot fly over normal fencing.

Aylesburys are relatively low-maintenance compared with many fowl, but their size and white feathers present a few specific requirements. They are not suited to cold, wet, muddy ground and do best with dry footing and access to clean bathing water.

Grooming

• Provide clean bathing water deep enough for the duck to dip its head and spread water over its back, which keeps the white plumage clean and the eyes and nostrils clear.
• Check the bill and eyes for grit and discharge, since the pale bill shows staining readily.
• Inspect feet and legs regularly for cuts or signs of bumblefoot, a common problem in heavy ducks on hard or dirty ground.
• During the annual moult expect a period of feather loss; keep bedding clean to protect new feathers.

Exercise

• Allow daily ranging on grass to forage for plants, slugs, and insects.
• Keep paths and gates flat, as heavy ducks tire and can strain their legs on slopes or steps.
• Avoid driving or rushing the birds, which can cause leg injury in a large breed.

Environment

House Aylesburys in a dry, draught-free, predator-proof shelter at night with clean bedding such as straw or wood shavings. Provide shade in hot weather, since heavy white ducks tolerate heat poorly, and keep the ground well drained to reduce muddy, soiled plumage and foot problems.

Feed a complete pelleted ration formulated for ducks or waterfowl where available; standard poultry feed may be used provided it is not medicated with additives unsafe for ducks. Always provide constant clean drinking water alongside food, as ducks require water to swallow and to clear their bills and nostrils. Offer insoluble grit so birds can grind their food, and a separate source of soluble calcium such as crushed oyster shell for laying ducks.

Treats and supplements

Suitable treats include leafy greens, peas, chopped vegetables, mealworms, and small amounts of grain such as wheat, all given in moderation so that they do not displace the balanced ration. Niacin (vitamin B3) is important for growing ducklings, so a waterfowl feed or a niacin supplement helps prevent leg weakness. Floating greens or grain on water encourages natural foraging behaviour.

The Aylesbury is a robust duck when kept on dry, clean ground with adequate food and water. Most health problems in the breed relate to its weight and white plumage rather than to inherited disease. With good husbandry an Aylesbury can live 8 to 12 years, though heavy ducks bred for fast growth may have shorter working lives.

Preventive care

• Keep housing dry, clean, and well ventilated, and change bedding regularly.
• Provide clean drinking and bathing water at all times.
• Maintain soft, well-drained footing to prevent foot injury.
• Feed a balanced ration with sufficient niacin and calcium for the life stage.
• Monitor weight and avoid overfeeding rich scraps.

Aylesburys are kept on the ground and cannot fly over normal fencing, so housing requirements focus on shelter, drainage, and protection from predators rather than on height. A garden, paddock, or smallholding with grass and a pond or large water container suits them well. They need a dry place to rest by day and a closed house at night, as ducks left outside are vulnerable to predators.

Setup checklist

• A predator-proof house with solid walls and a secure latching door.
• Dry, deep bedding refreshed regularly.
• Drinking water and separate bathing water, both kept clean.
• Shade from trees or a shelter for hot days.
• Well-drained, flat ground to limit mud and foot problems.
• Low fencing or netting to keep ducks in and ground predators out.

Aylesbury eggs take about 28 days to hatch, the standard period for most domestic ducks. Eggs may be set under a broody duck or hen, or incubated artificially. Many heavy table breeds are unreliable sitters, so incubators are frequently used for Aylesburys. Duck eggs require higher humidity than chicken eggs and benefit from daily cooling and light misting from the second week, which replicates the behaviour of a sitting duck leaving the nest and returning with wet feathers.

Hatching steps

1. Collect clean eggs and store them pointed end down at cool room temperature for no more than about a week before setting.
2. Bring the incubator to a stable temperature and humidity before adding eggs.
3. Turn the eggs several times a day and candle around day 7 and day 14 to check development.
4. Cool and lightly mist the eggs once daily from the second week.
5. Stop turning and raise humidity around day 25 for lockdown.
6. Leave hatched ducklings in the incubator until they are dry and fluffed before moving them to a warm brooder.