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White Patches on Ducks

White Patches on Ducks

Have you noticed some new white spots on your ducks? 

White patches on ducks’ feathers aren’t always a cause for concern, but they can signify various medical conditions.

This is why it’s essential to take note if you spot them. 

These white patches can range from small and isolated spots to larger areas of discoloration that cover much of the bird’s feathers.

Read on to learn more about the cause of these patches, if you should worry, and what you can do in response.

White Patches on Ducks

What Causes White Patches on Ducks?

  • Healthy molting 
  • Underlying health issue
  • Poor nutrition
  • Too much sun exposure
  • Parasites
  • Genetics

Knowing what causes white patches on duck feathers is critical to keeping your backyard friends healthy and safe.

It’s essential to do research and consult with an expert (preferably a veterinarian or a seasoned poultry keeper) if you’re unsure about the cause so that any necessary steps can be taken, whether it involves providing proper nutrition or getting appropriate treatment for your ducks.


Genetics are the most common cause, and some breeds of ducks are more prone to developing white patches than others. 

Some ducks are more prone to developing white patches with age.

Think of it as the fowl equivalent of a woman greying or a man balding with age. 

Cayugas are the most common breed of duck to develop feather bleaching, or at least the most noticeable breed, since most are black birds. Other notable dark breeds will eventually develop white feather patches: 

  • Muscovy
  • Magpie
  • Runners
  • Swedish
  • Ancona

Rouen, Welsh Harlequins, and Mallards have rarely developed white patches.

Pekins develop white patches too, but since they are already all-white, they will not be noticeable. 


Diet also plays an important role; if the duck isn’t getting enough of the proper nutrients or enough food in general, it can weaken its feathers and lead to white spots.

Remember that feathers are made of keratin, and keratin is 80% to 85% protein.

Not enough protein may cause discoloration. 

A vitamin and mineral deficiency could also be the root cause. 

Vitamin A is an essential nutrient for keeping ducks’ feathers in top condition, as it supports their feather structure and helps their coat stay waterproof. 

Other essential vitamins that are good for feather health are B vitamins and biotin, as well as K3, E, C, and D. 

Nutrients such as calcium, iodine, zinc, and selenium also play a role in maintaining healthy feathers since they aid growth, provide strength, and protect the birds from disease.

Ducks should be given access to a wide variety of natural foods, including grasses, insect larvae, and earthworms which will help to ensure that they always have enough of these key nutrients for beautiful feathers.


Parasites like chicken mites, northern fowl mites, and ticks can all create feather damage that can manifest as white discoloration. Internal parasitic worms may also cause damage in extreme stress, largely due to malnourishment and stress.

To protect your ducks from parasites, read about healthy parasite prevention and deworming practices.

white patches on ducks muscovy molting

Too Much Direct Sunshine

Sun exposure is another major factor due to its damaging effects, so providing plenty of shade for your ducks might be necessary for hot climates or bright yards 

Sun bleaching is not a cause for concern because the only effects are purely cosmetic. Some call this “snow,” as the white patches somewhat resemble snowflakes, especially on darker birds. 

One benefit of this change is identification. No two birds will bleach or develop white spots in the same patterns.

If you had an otherwise all-black flock of ducks, having different white snow patterns in their plumage can make it easier for you to distinguish and remember individuals, allowing you to keep better track of the birds, note their personalities, and monitor health more efficiently.  

Injury or Damaged Follicles

If a bird has any damage to her skin, follicles, or feathers, when she molts, the new feathers will often come back white.

Breeding season causes breakage and damage, and so can new flock mates (the pecking order has to be reestablished) or even unsuccessful predators that your ducks had to fight off.

As you may have already gathered, females will turn white faster than drakes, primarily due to breeding season and stress. To keep a healthy ratio for your ladies, keep at least three to five females for every drake in the flock. Not having any drakes will significantly reduce damage and stress. 

Unhealthy Environment

Finally, the ducks’ environment plays a big role, too – if there are impurities or pollutions in their coop, run, or free-range yard, it could affect their feathers and lead to white spots.

Keeping a dirty coop can have an impact beyond our noses – it can also cause your ducks to have discolored feathers.

Because feathers are made of keratin, a protein-based material, they are susceptible to changes in pH levels. Proteins denature under large pH fluctuations. 

In the case of a dirty coop or run, the high levels of ammonia and other waste can significantly increase the acidity of an environment, causing dark areas to turn white and then white feathers to become yellow or yellow brassy. 

Either clean the coop on a regular basis or use the deep litter method appropriately. Your coop should also have proper ventilation, but not a draft. Avoid overcrowding, clean the food and water containers regularly, and always provide a clean place for your ducks to swim.

You don’t have to use soap and water every day, but you should at least dump out the messy water, rinse, and then refill artificial duck pools every day.

White Patches on Ducks, group of sick ducks

Frequently Asked Questions 

Do Ducks Get White Patches from Aging?

White patches could come from a number of different factors, including aging.

Aging is the most common reason your duck or ducks develop white or grey spots in their feathers. 

Are White Patches on Ducks Hereditary? 

White patches are sometimes genetic or hereditary. If a duck’s mother developed white patches, then she will likely develop them too.

There is nothing wrong with these, and you may even enjoy and appreciate the uniqueness of these snowy patches. 

Are White Patches on Ducks a Bad Sign?

White patches can be attributed to a number of factors.

They may be due to aging, or they could be a sign of injury, stress, malnourishment, or follicle damage in the location of the white spot.

Closely look over your ducks and monitor their behavior on a daily basis to ensure they are healthy and safe.

Do All Duck Breeds Turn White?

Almost all duck breeds will develop splashes of white on their feathers, though some breeds and individuals will not.

Light or white ducks do develop patches on their bodies, but they are nearly impossible to detect thanks to their natural feather colors. 

White Patches on Ducks: Final Thoughts

White patches on duck feathers can be caused by a variety of factors, including genetics, diet, and environment.

As long as your ducks are healthy, clean, safe, well-fed, dewormed, and kept in an appropriate drake-to-hen ratio, the white spots are not likely a cause for concern. In this case, enjoy the beautiful marbling effect on the flock and your new easy duck-identification system! 

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