What Do Bees Do in the Winter? Essential Insights for Beekeepers

What Do Bees Do in the Winter? Essential Insights for Beekeepers

What do bees do in the winter? Unlike many creatures, bees do not hibernate. They stay active inside their hives, forming a tight cluster to keep warm and consuming stored honey for energy. This guide will explore how bees prepare for the cold months, their winter behaviors, challenges they face, and how beekeepers can help them survive.

How Honey Bees Prepare for Winter

As winter nears, honey bee colonies begin a remarkable journey to prepare for survival. Unlike some creatures that hibernate, honey bees remain active throughout the winter, relying on their well-orchestrated efforts from the warmer months. Their preparation includes collecting nectar and pollen, transforming it into honey, and laying winter bees adapted to endure the cold months.

The queen bee lays winter bees, a special caste with larger fat bodies and a longer lifespan. These winter bees are vital for maintaining the colony’s health and warmth throughout the winter.

As the queen slows her egg-laying, the colony ensures there’s enough stored honey for winter. Here are the key preparatory steps.

Bees coming in and out of hive

Collecting Nectar and Pollen

Even as temperatures fall below 60 degrees, honey bees work tirelessly to collect nectar and pollen. This process is akin to how squirrels gather nuts for the winter. Worker bees venture to blooming flowers, gathering nectar and pollen to bring back to the hive. This task is crucial, providing the raw materials to produce honey that sustains the colony through winter.

Collected nectar is stored in the bees’ honey stomachs and transferred to other workers upon returning to the hive, who then process it into honey. Pollen is packed into cells within the hive to serve as a protein source.

Beekeepers often provide pollen patties to ensure the bees have ample resources to build honey stores.

Storing Honey

After collecting nectar, honey bees transform it into honey through a meticulous process. Stored in wax cells, the nectar undergoes evaporation and enzymatic action to become honey. Stored honey is crucial for survival during winter, providing a consistent fuel source when foraging is impossible.

A single hive can consume up to 30 pounds of stored honey during winter, highlighting the importance of ample reserves. Insufficient stores mean the colony risks starvation and may not survive the harsh winter.

Laying Winter Bees

As winter approaches, the queen bee slows her egg-laying and begins to lay winter bees. Winter bees, a special caste designed to survive harsh conditions, have larger fat bodies, contributing to their longer lifespan of about six months.

Winter bees play a crucial role beyond survival; they incubate the brood and keep the colony alive until spring. As winter progresses, the queen gradually resumes laying eggs, preparing the colony to thrive when warmer months return.

Kara on Chesterhaven Beach Farm in Winter

Our Chesterhaven Beach Farm looks beautiful covered in snow!

Winter Behavior of Honey Bees

As cold sets in, honey bees exhibit unique behaviors to survive winter. Unlike many insects, honey bees do not hibernate. They form a tight cluster within the hive to maintain warmth and protect the queen. Clustering helps regulate hive temperature, ensuring bees remain active throughout winter.

Winter activities revolve around consuming stored honey and managing the hive environment. They rely on stored honey as their primary energy source, moving within the cluster to access it. Proper ventilation and moisture control are crucial to prevent condensation and maintain a healthy hive.

Clustering for Warmth

To generate heat, honey bees cluster together and shiver using their flight muscles. The clustering behavior maintains the hive warm internal temperature, with the center reaching up to 100 °F.

By staying tightly packed, bees effectively conserve heat and keep the colony warm throughout winter.

Consuming Stored Honey

During winter, honey bees depend on stored honey to maintain energy levels. Winter bees frequently move within the cluster to access stored honey and uncapped nectar. This movement ensures all bees have access to the resources needed to survive the cold months.

Beekeepers often assess hive weight to determine if honey stores are adequate. If stores are insufficient, supplemental feeding with sugar syrup or other alternatives may be necessary.

Ventilation and Moisture Control

Proper ventilation is crucial for balancing temperature and moisture within the hive. Beekeepers adjust the bottom entrance and the internal cover’s notch to check ventilation. These adjustments help prevent moisture buildup, which can lead to fungal growth and harm the colony.

Hive positioning is also essential. A slight tilt in the hive helps moisture drain away, preventing condensation. Insulated roofs retain warm air and prevent condensation, ensuring a healthy environment for the bees.

Our Winter Respite collection helps you live seasonally, just like the bees!

Challenges Faced by Honey Bee Colonies in Winter

Winter poses significant challenges for honey bee colonies, from extreme weather to various pests and diseases. These challenges can lead to substantial colony losses if not managed properly. One pressing issue is Varroa mites, which weaken bees and make them more susceptible to other diseases.

Another critical challenge is the depletion of food stores. Without enough stored honey, the colony risks starvation during winter. Extreme cold hinders the bees’ ability to maintain hive warmth, leading to increased energy consumption and potential starvation if stores are insufficient.

Varroa Mites

Varroa mites significantly threaten honey bee colonies, especially during winter. These mites feed on the fat bodies of honey bees, crucial for their health and longevity. By weakening bees, Varroa mites make them more susceptible to diseases, increasing mortality rates during winter.

During winter, honeybee deaths are usually not caused by the cold. Instead, it is typically the result of ailments like Varroa mites or other diseases. Surprisingly, hive population decline often starts when the weather is still warm, and everyone seems healthy. As a beekeeper, it can be quite shocking to witness the disappearance of a seemingly thriving hive. 

Over the course of twelve years in beekeeping, we only experienced one year where we lost all of our bees. However, we have since implemented significant changes in our apiary to prevent a recurrence. Varroa mites, external parasites similar to ticks, can infect bees with various diseases that ultimately prove fatal to a hive. To safeguard against these mites, it's crucial to treat the bees regularly throughout the season in preparation for winter.

Controlling Varroa mites before winter is crucial for colony survival. Beekeepers must regularly monitor and treat hives to prevent infestations and protect bees.

Food Stores Depletion

Insufficient honey stores can lead to starvation, jeopardizing the colony’s survival through winter. When food resources are low, the bees’ ability to communicate and locate food sources is severely affected.

Beekeepers may need to provide supplemental feeding, like fondant or sugar syrup, to ensure bees eat enough food until spring.

Cold Weather Effects

Extreme cold significantly impacts a colony’s ability to maintain hive warmth, leading to higher energy consumption and increased starvation risk if stores are insufficient.

Proper hive insulation and management mitigate these effects and ensure the colony’s survival through winter.

This is an infrared photo of our hives during one of the coldest days in 2023

Beekeepers' Role in Supporting Winter Survival

Beekeepers play a crucial role in supporting honey bee colonies’ survival during winter. Providing supplemental feeding, proper hive insulation, and regular inspections can significantly reduce winter colony losses.

In winter, honeybees diligently gather honey and pollen to sustain themselves. In our region, they focus on building their family and fortifying their hive starting from early August. During this time, we refrain from disrupting the hive and provide supplementary food to maintain a healthy gut, offering ingredients such as herbs and protein. The goal is to promote strength in numbers, as a larger bee population results in a stronger hive and increases the chances of surviving the winter.

Effective winter management helps maintain colony health and ensures a strong start in spring. Beekeepers must be vigilant and proactive, addressing issues before they become critical.

Hive Insulation

Proper hive insulation and ventilation maintain warmth and prevent moisture buildup during extreme cold. A well-insulated hive conserves heat generated by the bees, ensuring a stable internal environment. Snow can also insulate hives, and heat from the hive can create an air space for additional insulation.

Beekeepers often use black insulated Bee Cozy wraps for thermal protection. These wraps help retain heat and protect bees from harsh winter conditions.

Supplemental Feeding

A colony in northern climates typically requires about 90 pounds of honey reserves to survive winter. Monitoring food stores throughout winter ensures bees have enough resources to thrive until spring. Beekeepers may need to provide supplemental feeding, like sugar syrup or pollen patties, to maintain energy levels.

Supplemental feeding methods like heavy stickies or the honey-board method provide necessary nutrients. These methods ensure the colony has enough food resources during winter.

Regular Inspections

Regular inspections are crucial for ensuring the health and survival of bee colonies during winter. Late-winter assessments help beekeepers understand bee survival and identify strong colonies. During inspections, beekeepers look for signs of activity and a healthy bee population, indicating the hive is alive and thriving.

Monitoring for Varroa mites before winter is essential to prevent fatal infestations. If a queen bee is not found during inspection, introducing a new queen helps maintain colony stability.

Beekeepers typically avoid opening hives during winter to keep them warm, but reorganizing the beehive frames to place brood in the center for warmth is crucial.

Kara harvesting honey holding a bee hive frame

By supporting small, local beekeepers like Kara, you can help the bees survive this winter

How Climate Change Affects Wintering Bees

Maryland winters are unpredictable, with some days brutally cold and snowing and the days that follow can reach up to 60 degrees and sunny. On the warmer sunny days, bees will leave the hive to spread their wings and relieve themselves before returning back to the cluster. The cluster will also reposition itself in other areas of the hive where there is fresh honey to eat.

Climate change introduces new challenges for wintering bees, altering traditional weather patterns and affecting behavior. These changes can disrupt natural rhythms, leading to mismatches between bee activity and resource availability. Understanding how climate change impacts bees is essential for developing survival strategies.

The effects of climate change can lead to altered hibernation patterns and variations in nectar availability, which are crucial for the bees’ energy needs. Public participation in data collection can provide valuable insights into these changes, helping scientists and beekeepers better understand and mitigate the impacts of climate change on bee populations.

Altered Hibernation Patterns

Climate change can alter the timing of hibernation for bees, potentially leading to mismatches in bee activity and resource availability. Bees hibernate is a critical survival strategy for bees during colder months, and any disruption to this pattern can threaten colony survival.

Beekeepers need to be aware of these changes and adapt their management practices accordingly to support their bees.

Nectar Availability

Nectar availability is crucial for supporting the energy needs and overall health of bee populations, especially during challenging seasons. Climate change can lead to fluctuations in nectar availability, resulting in food shortages and negatively affecting bee populations.

Maintaining a diverse range of nectar sources is vital for ensuring the health and sustainability of bee colonies.

Public Participation in Data Collection

Public participation is crucial for gathering important data on bees, helping scientists track the effects of climate change on bee populations. By sharing their bee sightings and recording first sightings of bees, participants contribute valuable data that aids in understanding bee behaviors and population trends.

Projects like INaturalist encourage people to track species, including the red-tailed bumblebee, providing essential information for research and conservation efforts.

Winter Inside the Life of Honeybees

Honey bees employ a range of strategies to prepare for and survive the winter months, from collecting nectar and storing honey to clustering for warmth and managing hive conditions. Beekeepers play a vital role in supporting their colonies through effective winter management practices, including hive insulation, supplemental feeding, and regular inspections. Additionally, understanding the impacts of climate change on bee behavior and resource availability is crucial for developing adaptive strategies to ensure the long-term survival of bee populations. As we continue to learn and adapt, we can help our honey bees thrive, even in the face of changing environmental conditions.

Frequently Asked Questions

Do honey bees hibernate during the winter?

Honey bees don’t hibernate; they stay active in their hive, forming a cluster to keep warm and eating stored honey to get through the winter. It's fascinating how they work together to survive the cold!

How do honey bees prepare for winter?

Honey bees get ready for winter by gathering nectar and pollen to make honey, which they store for food. The queen helps by laying special winter bees that can survive the cold months ahead.

What role do beekeepers play in helping honey bees survive the winter?

Beekeepers play a crucial role in helping honey bees survive winter by feeding them and ensuring their hives are insulated and healthy. Regular checks for pests and food levels also keep the bees safe during the cold months.

How does climate change affect honey bee hibernation patterns?

Climate change disrupts honey bee hibernation patterns, causing them to wake up at times when food resources are scarce. This mismatch can seriously threaten their survival during winter.

Why is nectar availability important for honey bees in winter?

Nectar availability is vital for honey bees in winter because it helps meet their energy needs and supports their health. When nectar supply fluctuates, it can lead to food shortages, putting bee colonies at risk.


Kara holding a hive frame in doorway of cabin

About the Author

Kara waxes about the bees, creates and tests recipes with her friend Joyce, and does her best to share what she’s learning about the bees, honey, ingredients we use and more. Read more about Kara