Spotted a Big Ball of Leaves in Your Tree? This Is What It Really Is
Has this ever happened to you? You’re walking through your yard, maybe raking or just looking up at the changing leaves, when you notice something strange tucked in the branches. A big, roundish clump of leaves and twigs, not quite a bird’s nest, not quite debris. What is that thing? Turns out, it’s not just a messy bunch of leaves. It’s a sign of wildlife activity going on above your head. Here’s what you’re really looking at.
You’ve Found a Squirrel Nest (Also Called a Drey)
That mysterious leafy lump is likely a squirrel nest, sometimes called a drey. Squirrels make them by weaving together sticks, leaves, and even bits of bark. They’re usually tucked between sturdy branches near the trunk of the tree to keep them from falling. From the ground, they can look a little sloppy, but to a squirrel, it’s a warm and safe home, especially as the weather starts to turn colder.
Why Squirrels Build Dreys
Squirrels are planners, and dreys are part of that plan. These nests keep them warm and protected during the fall and winter. Even though some squirrels make their homes in trees, many build these leaf balls as backup homes. They’ll sometimes even have two or three in case one gets damaged or falls down. So if you see more than one in your yard, that’s not unusual. It’s just a squirrel’s second home.
How They Build Them
It may look like a gust of wind could knock the whole thing down, but squirrel dreys are built to last. First, squirrels create a base of twigs. Then they layer leaves and soft materials like moss or grass inside for insulation. They weave the outer layer tightly enough that it keeps rain out and traps heat. The result is a small, weather-resistant nest where they can hide from storms or raise babies.
What Time of Year Squirrel Nests Start Showing Up
You’ll usually start to see new dreys appear in late summer or early fall. That’s because squirrels are getting ready for colder weather. They build these nests high up to stay safe from predators, but also to soak up as much warmth and sunlight as they can. If you see a flurry of activity in the treetops around this time, that’s probably your local squirrels preparing their winter homes.
Are Squirrel Nests a Problem for Your Yard?
Generally, no. Squirrels are part of the ecosystem and do more good than harm. Their nests don’t usually hurt trees, and it’s best not to try and remove them. However, if a drey is too close to your roofline or power lines, it might be worth calling a wildlife expert to make sure they aren’t getting into your home. Otherwise, letting their nests be is a great way to quietly support local wildlife without needing to lift a finger.
How to Tell If It’s Not a Squirrel Nest
If you’re not sure what you’re looking at, watch for movement. Squirrels will come and go during the day so you’ll be able to tell very quickly if it's a squirrel nest. If you see birds flying in and out, it might be an old hawk or crow nest. Wasps also sometimes build large hanging paper nests, but those look very different from a clump of leaves. When in doubt, keep your distance. All wild critters prefer to be left alone and will return the favor.
What to Do If the Nest Falls Down
Storms or strong winds can sometimes knock a drey loose. If that happens, you might find a ball of twigs and leaves on the ground. Leave it where it is for a day or two. Squirrels may salvage pieces to rebuild their drey. And if you spot a baby squirrel nearby, don’t panic. Give the mother a chance to retrieve it and don’t touch it. If it’s still alone after 24 hours, call a wildlife rehabber or animal control for help.
There’s More Life in the Trees Than You Think
That odd-looking ball of leaves up in your tree isn’t just clutter, it’s a squirrel’s home. Squirrels are clever, tough little neighbors, and spotting their nests can remind us just how much is going on right over our heads. Next time you notice one, take a moment to appreciate the quiet hustle of the natural world. You don’t have to do anything except maybe smile and let it be.