FIELD NOTES BLOG

Nocturnal Animals

education2.americorps
October 16, 2025

Learn about nocturnal animals found at severson!

With the onset of fall and spooky season come many fun changes in our world, like cooler temperatures, colorful leaves, and grasses turning golden and brown. This turn of the seasons also shortens our days. These longer nights create more opportunities to see animals that come out primarily when it is dark, also known as nocturnal animals. Many different animals have adapted to come out at night primarily as a way to avoid daytime predators, conserve water that could more easily escape their bodies under the heat of the sun, and many other reasons specific to their needs. The following are some of the incredible nocturnal animals that can be found at Severson and in the surrounding region. They are also some of the amazing creatures we will celebrate at our upcoming event Spook the Dells later this week!




Coyotes

Coyotes are adaptable to many habitats, historically navigating prairie and desert landscapes but now also seen traversing everywhere from complex urban landscapes to rural farm communities. They primarily eat small rodents, fruit, and other small prey with occasional shifts to larger prey like rabbits and deer. Coyotes tend to be nocturnal especially when living near human settlements, as this behavior helps them avoid contact with humans while hunting.




Raccoons

Raccoons are closely related to bears and dogs, and their bodies can grow anywhere between 16-28 inches with a 12 inch tail. Although raccoons don’t fully hibernate during winter, they primarily spend time in their dens with the onset of colder months. Their dens can be found in a variety of places, from logs to burrows to barns. Raccoons' nocturnal behavior is supported by their naturally higher body temperature, awareness of moon cycles, and strong senses of sight and hearing.




Bats

Bats are the only flying mammals, and can be found all over the world in a vast range of ecosystems. Their latin name, Chiroptera, means hand-wing, for the way that their wings appear like webbed hands. The largest bat in the world is the flying fox, with a wing span that can reach six feet, and the world’s smallest bat is the bumblebee bat, who is smaller than your finger. Nocturnal foraging and hunting behavior helps bats enjoy plants that may only open their flowers at night, and they are specially adapted to maneuver their environment at night because of their use of echolocation. 




Owls

Owls have sharp talons and curved bills that they use for hunting, which means they are considered birds of prey. Owls like to spend their time hunting for small live prey, roosting aka resting, or nesting and raising young. Some owls like to roost alone, and some like to roost with others, which provides important benefits like the ability to share hunting information, mate, and stay warm during colder months. Like other animals, owls benefit from the safety of hunting under cover of darkness, especially because they have large, rod-filled eyes which give them a very strong ability to pick up on the subtle lighting variations of nighttime landscapes.




Spiders

It is thought that there are some 51,500 plus species of arachnids, or spiders, found across the world. These eight-legged creatures hunt their prey, primarily insects, in a variety of ways, with some spinning the beautiful webs we can see around us. Notably, the Orb Weaver spider’s beautifully rounded webs can be easily seen at Severson from late summer into this time of year.




Skunks

Skunks are famed for their unique ability to emit a pungent substance called thiol, which gives them their trademark smell. Although they are known for this ability, skunks usually only use this response to a perceived threat when it’s their lost option. Skunks dig long burrows themselves, but they often prefer to take over a burrow previously made by another animal such as a fox. Skunks forage for their food, things such as insects, rodents, etc. They actually can even eat poisonous snakes because they are immune to their venom. Their nocturnal behavior helps skunks locate their preferred prey and stay cool while they hunt.


Opossums

Opossums are North America’s only marsupial(animals with a pouch). They are known for “playing dead” or “playing possum”, which they do when predators or other perceived threats fail to be intimidated by their hissing sounds. Opossums are primarily nocturnal as a way to avoid predators and conserve energy. 



To learn more about these animals and even meet a few, join us at Spook the Dells on October 18th from 6:00pm-7:30pm.

RECENT ARTICLES

November 24, 2025
The winter holiday season is right around the corner. You may be seeing an influx of “BUY THIS” ads across your social media and talks of “50% off” while listening to your radio. Stores now have giant displays of wrapping paper with trending pop culture icons and entire quadrants dedicated to the newest, trendiest decor. All of these elements might have you thinking, “is this really sustainable?” The answer: sometimes, but there may be options for a different, more sustainable holiday season. There are many ways to increase the sustainability of the holiday season, and often, these methods have more benefits than just being environmentally friendly. Shopping locally, considering alternative gifts, utilizing sustainable wrapping, and crafting decor can all make an impact.
By Linda Sandquist November 21, 2025
As the leaves change colors and fall to the ground and the temperatures dip below freezing, we can feel the calendar tumbling toward the end of the year. Soon the Thanksgiving feast will be just a memory, and we’ll bring out our menorahs, Christmas trees, Kawanza candles, yule logs, and whatever else we use to bring light into this season of shorter days and longer nights. As the days swirl past Thanksgiving, many people observe other “holidays” like Black Friday, Small Business Saturday, Cyber Monday, and Giving Tuesday. Giving Tuesday, December 2nd, gives us a reason to think about others and contribute to charitable organizations that support causes near and dear to our hearts. As you consider your End of the Year giving and Giving Tuesday, we at Severson Dells encourage you to be generous to a fault. Political and economic uncertainty have negatively affected not-for-profit agencies and people’s needs have grown. If you are concerned about food insecurity, give to a food pantry. If you want to make sure someone has a roof over their head, give to a shelter or employment program. Education, animals, the arts, medical research – there are dozens of ways you can support a better community. And, of course, if you believe that nature education is important, please consider giving to Severson Dells . We are living in a world where more and more time is being spent head down on screens and less time heads up in nature. When you give to Severson Dells, you invest in curiosity and creativity, and the many other benefits people receive by being in the natural world. You support the discoveries both children and adults make in the great outdoors. You help sustain environmental stewardship and a pathway to better mental and physical health. Your gift makes a difference! Wishing you a delightful giving season. Severson Dells is a 501(c)3 organization. Our EIN is 36-2985870. We accept DAFs, IRA gifts, appreciated stock, real estate, and cash gifts. You can also join our recurring giving club to make your giving easy and predictable. Questions about giving? Call me at 815-335-2915 or email me at linda@seversondells.org
By Lauren Bonavia November 13, 2025
The hidden benefits of leaving your yard waste this fall and winter