Keep Bird Feeders Clean During Winter

Charlotte Weidner | February 14, 2026

One of the simple joys in winter is watching our backyard feathered friends flit around our yards, eat berries from bushes and pluck seeds from perennial seed heads. Setting out bird feeders allows us to attract larger populations of birds as well as sneak a peek at some varieties you’d not usually notice! It’s also a great way to contribute to wildlife conservation and help migrating birds get the nutrition they need.

Attracting and feeding colorful wildlife is easy and fun for all ages, but like any pastime and hobby, there are few chores involved to keep your feeders, and therefore your songbirds healthy!

The Basics
Keep Them Clean
Keep Them Dry
Keep Them Hydrated

The Basics

Bird feeders need to be cleaned regularly to prevent any disease from spreading. Proper placement so birds feel safe and so the feeders remain dry and out of the worst of the elements not only makes your job easier but also makes your feathered friends feel safe to approach.

Make it a habit to check your feeders weekly to not just refill them, but also clean them out and keep everything sanitary.! Perhaps you’re not in an area that gets snow, but even rain and other elements can cause your feeders to need some attention year-round.

Check weekly to see if the seed is dry and make sure empty hulls, droppings and puddles are cleaned off the tray. Scoop out and dispose of any wet, moldy seed that can make birds sick and dispose of it away from the feeder area. Removing seed that has decomposed or is mostly spent hulls will also help prevent the spread of illness.

Keeping bird feeders clean prevents:

Disease spreading due to higher bird concentrations
Reduces the spread of mites and lice, or other parasites
Salmonella infections that are spread by droppings
Aspergillosis - a fungus that can cause respiratory issues in birds
House Finch conjunctivitis (eye infections)

Keep Them Clean

Rain or shine, or even snow - Every other week, it’s recommended that you completely wash out and sanitize your birdfeeders. After dumping the old food and scraping off any droppings and other debris, then rinse out your feeders and take them apart. Either wash them by hand with soap and hot water, adding a few drops of bleach to really kill bacteria, or run them through your dishwasher (as long as any plastic parts won’t melt during the drying cycle).

If you are hand washing, gather of the following:

Clean rags
Hot soapy water
Mild, diluted bleach solution or diluted household vinegar
Bucket or a large bowl if not using a sink
Soft brush for scrubbing
Drying towel or paper towels

Let soak, scrub and wash, then rinse and dry completely before refilling with fresh birdseed.

Another area to keep clean is the ground below the feeder. Spent seed hulls are messy and uneaten seeds might come up next year and create more weeds for you to pull. You will also avoid attracting unwanted visitors looking for a meal such as mice.

Keep Them Dry

Anyone who’s fed birds long enough rolls their eyes when someone uses the term ‘Eats like a bird.’! Birds do not eat small amounts of food, they do not have ‘bird-bellies’, nor are they cheap dates! Keeping your feeders clean and dry will save you a lot of money in the long run by not having food get moldy and rot before every last seed gets eaten!

One of the biggest obstacles for birdseed is moisture. Wet seeds stick together and won’t let fresh seed flow out of the feeder holes, and long-term issues are mold, mildew, spoiled seeds and sick birds!

Make sure to first choose a feeder with ample protection to keep the rain out, or select a place to hang or attach them that is under an overhang (or build one if you’re creative and handy!).

Suet Feeders

The fat content in suet feeders makes things a bit trickier, but a good washing in hot soapy water, maybe a bit of a long soak in some dish soap that is especially used on greasy pots and pans, will help remove the oily residue. Another good degreaser is diluted vinegar that you’d use for household cleaning.

Again, rinse thoroughly and dry completely before refilling with fresh Suet cakes.

Hummingbird Feeders

Those gardeners that won’t have snow on the ground all winter or in warm climates will still have the joy of seeing Hummingbirds in their area! These feeders need food refreshed every few days and weekly cleanings too!

Avoid using any detergent or soap and spray down the feeder with very hot water and just a drop of diluted bleach solution to clean them out before refilling. Be certain to rinse these thoroughly!

Keep Them Hydrated

Water is another scarce commodity for birds in the winter, especially when it's very cold and all moisture is locked away in the form of ice or snow. So providing your songbirds birdbaths or another water source can be tricky. Colder regions especially will find keeping bird watering stations and birdbaths in a liquid form difficult, but there are heaters that can be used to keep things just above freezing.

Bird lovers in warm climates and during warm spells, it’s just as important to get outside and wash these out every week to two weeks depending on the traffic. Droppings, feathers and other debris quickly build up and can make for very unsanitary conditions!

Again, armed with your diluted bleach solution and or hot soapy water, scrub out your watering station and rinse it thoroughly! Refill with clean water and a few clean rocks or pebbles for smaller birds to use as landing stones.

Feed the Birds with Nature Hills!

Keep your feathered friends happy and healthy this winter with fresh seeds, clean food and fresh water so you’ll not miss a single beat of a wing!

Of course, one way to avoid weekly cleaning and refilling is simply to let mother nature feed your birds! Plant your very own living birdseed growing garden with these Bird-Friendly landscape ideas!

Let Nature Hills Nursery be your go-to source for all things bird-friendly this and every year!

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Frequently Asked Questions

How do you safely clean bird feeders when temperatures drop below freezing?

Cleaning bird feeders in freezing temperatures requires a few simple adjustments to your regular routine. Every other week, bring feeders indoors to wash them with hot soapy water and a diluted bleach solution, allowing them to dry completely in a warm space before refilling and returning them outside. Never put a wet feeder back out in freezing temperatures, as trapped moisture can freeze and crack the feeder or promote mold growth. Stick to your biweekly cleaning schedule and do your washing indoors during winter to keep both your feeders and your birds healthy all season long.

What is the best way to attract more birds to your feeder during winter?

To attract more birds to your feeder during winter, place feeders in a location that offers nearby shelter such as shrubs or trees so birds feel safe approaching. Keeping feeders consistently stocked with fresh, dry seed is key, as birds will return reliably to dependable food sources during cold months. Clean your feeders every other week to prevent disease and remove spent hulls and droppings that can deter birds from visiting. Start by checking feeders weekly, refilling as needed, and positioning them within view of natural cover to encourage a wider variety of species.

How should you clean and maintain platform bird feeders through the winter months?

Platform bird feeders require weekly inspections to remove empty hulls, droppings, and any wet or moldy seed that can spread disease among concentrated bird populations. Every two weeks, fully disassemble and sanitize the feeder using hot soapy water with a few drops of bleach or a diluted vinegar solution, then rinse thoroughly before refilling. This routine holds true regardless of your climate zone, as rain and humidity can cause seed to spoil just as quickly as snow and ice. Make it a habit to pair your weekly seed refill with a quick tray scrub, and schedule your deep cleaning on a consistent biweekly basis to keep your feathered visitors healthy all season long.

Why have birds stopped visiting my feeder in winter?

There are several common reasons birds may abandon a feeder in winter, including dirty or moldy seed, standing water or ice in the tray, and feeders placed in locations where birds do not feel safe from predators. Birds have keen instincts and will avoid feeders where old hulls, droppings, or spoiled seed have accumulated, as these signal an unhealthy feeding environment. Check your feeder weekly, remove any wet or moldy seed immediately, and give the entire feeder a thorough wash with hot soapy water and a diluted bleach solution every two weeks to bring your feathered visitors back.

What could be keeping birds away from a feeder that was previously busy?

If your feeder has gone quiet, the most likely culprit is a dirty or moldy feeder that birds are instinctively avoiding for their own safety. Birds are sensitive to spoiled seed, droppings buildup, and fungal growth, all of which signal danger and drive them away. Give your feeder a thorough cleaning with hot soapy water and a diluted bleach solution, scrape off any debris, and replace all the seed with a fresh, dry supply to bring your flock back.

Should you avoid feeding birds salted sunflower seeds in winter?

Yes, you should avoid feeding birds salted sunflower seeds, as excess sodium is harmful to birds and can cause serious health problems including kidney damage and death. Always choose raw, unsalted sunflower seeds, whether black oil or striped varieties, which provide the high fat and protein content birds need to survive cold winters. Stock your feeders with unsalted black oil sunflower seeds, which have thinner shells most songbirds can crack open easily, and refill them every week while checking for moisture or spoilage.

Is it safe to put raw rice out for birds during cold weather?

Raw rice is generally considered safe for birds, though it offers limited nutritional value compared to high-fat, high-calorie foods that birds truly need to survive cold weather. During winter, birds benefit far more from black oil sunflower seeds, suet, and nyjer seed, which provide the energy and fat reserves they need to stay warm. If you want to support your backyard birds effectively this season, stock your feeders with calorie-dense seeds and suet cakes, and remember to clean your feeders every other week to prevent mold and disease.

Do finches and goldfinches eat black oil sunflower seeds?

While this article focuses on bird feeder maintenance and cleanliness, we can confirm that both finches and goldfinches are well-known lovers of black oil sunflower seeds, which are a top choice for attracting these colorful birds to your yard. Black oil sunflower seeds have thinner shells that are easy for smaller birds like finches to crack open, and their high fat content provides excellent energy. Stock your feeders with black oil sunflower seeds and be sure to clean them every two weeks with hot soapy water and a diluted bleach solution to keep your finches healthy and coming back all season long.

Will goldfinches eat mealworms at a winter bird feeder?

Goldfinches are primarily seed eaters and strongly prefer nyjer (thistle) seed or sunflower chips at winter feeders rather than mealworms, which are more attractive to bluebirds, wrens, and robins. During winter months, offering a dedicated nyjer feeder with small ports designed for finches is the best way to attract and support goldfinches in your yard. Keep your feeder clean and stocked with fresh, dry seed checked weekly to ensure the healthiest possible flock visits your yard.

Can spilled bird seed under feeders grow unwanted grass or weeds in your yard?

Yes, spilled bird seed can absolutely sprout into unwanted grass, weeds, or even sunflowers beneath your feeders, creating a maintenance headache come spring. Many commercial seed mixes contain millet, milo, and sunflower seeds that germinate readily in disturbed soil. To prevent this, place a tray or catch basin beneath your feeder to collect fallen seed, or choose hulled seed varieties that have had the germinating embryo removed. Clean up spilled seed from the ground weekly as part of your regular feeder maintenance routine.