Autumn is a season of transition: days get shorter, temperatures drop, and food starts to become scarce. While trees change color and drop their leaves, many animals also shift their behavior to prepare for the coming winter.
Some species eat as much as they can to build fat reserves, others migrate thousands of kilometers, and some spend the season storing food or getting ready to hibernate.
Below you’ll find 15 animals of autumn and the special strategies each one uses to survive this time of year.
1. Brown Bear (Ursus arctos)
In autumn, the brown bear enters a phase called hyperphagia – an intense feeding period to build up fat reserves.
Eats large amounts of berries, roots, honey, fish and small mammals
Can gain a third or more of its body weight before winter
This stored fat keeps the bear alive during hibernation, when it doesn’t eat or drink for several months
In northern regions, a well-fed brown bear is a clear sign that winter is just around the corner.
2. Red Deer (Cervus elaphus)
Autumn is the rutting season for the red deer, known as the “rut” or “berrea”.
Males give deep, powerful roars to attract females and warn rival males
They fight with their antlers to defend a group of females (a harem)
During this time males:
Eat very little
Spend most of their energy on courting and fighting
The sound of roaring red deer in mountain forests is one of the most iconic autumn wildlife spectacles in Europe.
3. Common Crane (Grus grus)
The common crane is a classic migratory bird of autumn.
In late summer and autumn, flocks leave northern Europe and fly to:
Southern Europe (e.g. Spain)
North Africa
They travel in large, noisy groups and often fly in V-shaped formations
Rest in wetlands and farmlands along their route
The sight and sound of cranes passing overhead is a strong signal that autumn migration is in full swing.
4. Monarch Butterfly (Danaus plexippus)
Monarch butterflies carry out one of the most famous migrations in the animal kingdom.
Each autumn, millions of monarchs travel from Canada and the United States to:
The oyamel fir forests of central Mexico
They can travel thousands of kilometers, despite their fragile appearance
Several generations are involved in the full annual cycle, making the migration even more remarkable
In autumn, skies filled with orange-and-black wings are one of the most beautiful signs of seasonal change.
5. Red Squirrel (Sciurus vulgaris)
Autumn is the busiest time of year for the red squirrel.
Spends hours collecting and hiding nuts and seeds such as:
Acorns
Pine nuts
Walnuts
Buries food in numerous small “caches” in the ground or hides it in tree crevices
Has an excellent spatial memory, enabling it to find many of its stored reserves in winter
Its fur becomes thicker and darker, improving insulation against the cold
Interestingly, forgotten caches can germinate, helping forests regenerate.
6. European Hedgehog (Erinaceus europaeus)
In autumn, the European hedgehog focuses on feeding and nest building.
Eats insects, snails, worms, fallen fruit and other small prey
Gradually gains weight to prepare for hibernation
Searches for a safe, sheltered place, often:
Under hedges
Among tree roots
In piles of leaves
Builds a nest of dry leaves and grass, where it will lower its body temperature and heart rate to save energy through winter
On mild autumn evenings, it’s common to see hedgehogs rustling through fallen leaves.
7. Red Fox (Vulpes vulpes)
The red fox is highly adaptable and adjusts both its fur and diet in autumn.
Its coat becomes denser and warmer to resist lower temperatures
Changes its diet depending on what’s available:
Small mammals and birds
Forest fruits and berries
Carrion and human leftovers in rural or urban areas
Often more active at dusk and early night during this season
This flexibility makes the red fox one of the most successful predators across the Northern Hemisphere.
8. Fire Salamander (Salamandra salamandra)
The common fire salamander becomes more visible in cool, wet autumn weather.
Prefers humid forests, shady areas and spots near streams
Autumn rains create ideal conditions for:
Reproduction
Night-time foraging
Nocturnal by nature, it leaves its hiding places to hunt:
Worms
Insects
Other small invertebrates
Its black body with bright yellow markings warns predators that it has toxic skin secretions
On rainy autumn nights, it’s one of the easiest amphibians to spot in European woodlands.
9. Canada Goose (Branta canadensis)
The Canada goose is another iconic autumn migrator.
Forms large V-shaped flocks to travel south
This formation:
Reduces wind resistance
Helps geese save energy
Keeps the group organized and in communication
They follow traditional migration routes, stopping at familiar lakes and wetlands
Their loud calls echoing overhead are one of the most recognizable sounds of autumn in North America
10. European Badger (Meles meles)
The European badger does not fully hibernate, but it changes its habits in autumn.
Feeds heavily on:
Fruits and berries
Roots and bulbs
Insects and earthworms
Builds up fat reserves to withstand cold months
Reinforces its underground sett with leaves and dry grass to conserve warmth
In winter, becomes less active and may stay inside for days, coming out mainly during milder spells
Autumn is also a time when adult badgers help their young perfect their foraging skills
11. Red Panda (Ailurus fulgens)
In the mountain forests of the Himalayas and surrounding regions, autumn is a crucial time for the red panda.
Increases its intake of:
Bamboo (its main food)
Fruits
Small invertebrates
Builds up energy reserves for the colder months at high altitude
Its already dense fur becomes even thicker, helping it tolerate low temperatures
Unfortunately, the red panda is endangered, and seasonal changes can be especially challenging for shrinking and fragmented populations.
12. Eurasian Eagle-Owl (Bubo bubo)
The Eurasian eagle-owl is one of the largest and most powerful owls in the world, and autumn nights suit it well.
Longer nights mean more hunting time
Autumn is a good season to hear its deep hoots, used to:
Mark territory
Communicate with mates or rivals
Hunts:
Rodents
Rabbits
Birds and other small animals
Silent flight and superb night vision make it a highly efficient predator in the darker, colder months
13. Eurasian Beaver (Castor fiber)
Autumn is a season of intense work for the Eurasian beaver.
Reinforces dams and lodges to withstand:
Heavy rains
Rising water levels
Early ice formation
Stores branches and logs underwater near the entrance of the lodge
In winter, when the surface is frozen, beavers can still feed on this stored wood
Their engineering activities reshape rivers and streams, creating:
Wetlands
Habitats for many other species
Beavers are true “ecosystem engineers”, and autumn is their peak construction season.
14. European Robin (Erithacus rubecula)
The European robin becomes especially noticeable in autumn.
With leaves falling, its red-orange chest stands out in gardens and open woodlands
Becomes strongly territorial, defending good feeding areas
Many robins from northern Europe migrate south to milder climates, while local birds defend their own winter territories
Their clear, melodic song can often still be heard on mild autumn days, even as many other birds fall silent.
15. Alpine Marmot (Marmota marmota)
For the Alpine marmot, autumn is the final preparation phase before winter hibernation.
Spends long hours feeding on:
Grasses
Roots
Herbs
Gains considerable weight, mainly as fat stores
Lines its burrow with dry grass and insulating material
Reduces its activity progressively, adjusting its body to a slower winter rhythm
When the snow settles in the mountains, marmots will already be deep in their burrows, hibernating until spring.
Autumn Animals: A Season of Strategy and Survival
From hungry bears and rutting deer to migrating cranes and caching squirrels, autumn is one of the most active and strategic times of the year for wildlife.
Each of these 15 autumn animals shows a different way to answer the same challenge:
How to survive the coming winter with limited light, food and warmth.
Watching how they prepare – eating more, traveling far, building nests, storing food or defending territories – is one of the most fascinating ways to understand the rhythm of nature through the seasons.
