Signs of Autumn: Flying Birds, Falling Leaves, and Fading Sunlight

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What are the First Signs of Fall? What Happens to Nature in the Fall?

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What signs of fall can you see, hear, taste, smell, and touch? In our neck of the woods, the signs of fall are acorns falling and squirrels scurrying about. Hawks and hummers are starting to migrate. Let’s use all five of those senses!

The signs of fall start much earlier than the autumnal equinox, even if the weather still feels summer-like. Look around you. Observe the birds, the plants, the sunrise and -set. Here are some signs of fall that you might notice.

See our Autumnal Equinox page to find out when fall begins—plus fall facts and folklore.

Sunlight

Have you noticed that it’s darker now in the mornings? The Sun is rising later—and setting earlier, too. The days get noticeably shorter as it gets dark earlier each night. (See your local sunrise/sunset times and length of day.)

If you closely observe the Sun’s path across the sky, you’ll see the arc is shifting south. Did you know that birds and butterflies migrate along the path of the Sun?

Autumn Air

Breathe in. The outdoors begins to smell a bit different. Do you smell the air changing? Perhaps you smell the plants’ leaves browning or the fallen leaves on the ground?

Insects

Listen at night. You’ll hear the insects singing slower on cool evenings. In fact, did you know that you can tell the temperature by a cricket’s chirp? Find out how.

As the days get shorter and nights get longer, the garden spider spins its web at night, giving it more time to build a larger web during the fall months. (A garden spider does not find food inside your house; in fact, it helps eat insects and prevents them from entering your home!)

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Credit: Getty

Migrating Birds

Listen. Do you hear the calls of geese flying overhead? Hawks, geese, and swallows are migrating south for the winter. 

Near The Old Farmer’s Almanac offices in New Hampshire is a mountain called Pack Monadnock, known for being a hawk hotspot. At the summit, you’ll view kettles of hawks soaring in the sky. The hawk migration means their food supply of mice, snakes, and forest creatures is dwindling—a clear sign of summer’s end! Read more about hawks and birds of prey.

Many readers report that their hummingbirds have left or are leaving for warmer climates as early as mid-August.

Some butterflies migrate while others stay closer to home and begin to seek shelter for the cooler months. Try to leave some leaf litter for your beneficial insects!

Bears

Birds aren’t the only creatures hinting that cold weather’s coming. Our Almanac publisher saw a bear crossing the road midway through her walk! Late August to mid-September is prime time for blackberries. Bears are gorging to build up their fat stores before they hibernate.

Folklore says: It is going to be a tough winter if bears are seen berrying.

Squirrels

If you take regular walks outdoors, you’ll see that the squirrels are busy. They’re collecting ripe brown acorns for their winter stash. Lots of seeds are falling now. Watch for squirrels hiding nuts.

According to folklore: If the oak bears much mast [acorns], it foreshadows a long and hard winter.

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In autumn, mushrooms and other fungi pop up everywhere!

Other Life

Another way we know autumn is approaching is to observe the plants and fungi.  

Squashes, pumpkin, nuts, and apples are ready for harvest. The other vegetables in the garden are slowing down, ending their growth cycle.  

Acorns, pinecones, and sycamore “helicopters” fall to the ground. Mushrooms and other fungi pop up everywhere.

Grass doesn’t grow as fast. You’ll also see morning dew. Fall flowers such as asters and goldenrods are blooming.

When you’re walking outdoors, seeds will stick to your jacket or socks.

Some leaves are already falling, and the leaves on many of the trees are starting to change color. Observe the reds, oranges, yellows, and browns of falling leaves. Interestingly, leaves do not change because of cooler temperatures alone. Learn why autumn leaves change colors

Weather

It’s not just the trees’ colorful clothing that changes—it’s our own! Shorter days mean cooler weather’s coming. The air begins to feel crisper, especially in the morning.

The direction of the wind changes, and windy days become more common. Hurricanes and tropical storms begin to happen.

Get ready to add a layer of clothes for a walk in the woods! Add a soft blanket to the sofa. Get cozy!

And, of course, fall also means picking up the newest edition of The Old Farmer’s Almanac for our winter weather predictions! Here’s a preview.

What says “autumn” to you? Please comment below (and include your location!).

About The Author

Catherine Boeckmann

Catherine Boeckmann loves nature, stargazing, and gardening so it’s not surprising that she and The Old Farmer’s Almanac found each other. She leads digital content for the Almanac website, and is also a certified master gardener in the state of Indiana. Read More from Catherine Boeckmann

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