Tag Archives: animals

Where do insects go in the winter?

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Post by Allison

Earlier this week, my husband came in from the yard with a mosquito on his forehead. Had it been summer, that little tag-along would never have made it so far—but not in December. In the colder months, critters that are commonplace during the Midwestern summer are often the farthest things from our minds. It always amazes me when the weather has been cold for an extended period, then, at the first sign of warmth, insects seem to magically reappear. Where have they been hiding? How did they survive the frigid air that makes me shiver in my sweater when I’m outdoors longer than a few minutes?

Where do insects go in the winter?

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Shrew crossing

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While we revel in the slow pace of these last dog days of summer, sipping one last lemonade on the porch or wandering down one last stretch of beach, there is another mammal pulsing with life that has no such concept of slowing down. One of the most abundant mammals in Illinois, the shrew lives its life entirely in the fast lane—tunneling about a foot below the ground’s surface.

There are three species of shrews that live in Lake County, Illinois. The most common species, and largest at about 4 inches long with a 1-inch tail, is the lead-colored short-tailed shrew (Blarina brevicauda). The short-tailed shrew lives in a variety of habitats from forests to grasslands and typically only lives 1-2 years.

The least shrew (Cryptotis parva), at about 3 inches long, can be distinguished by its cinnamon-colored fur and extremely short tail. Least shrews are most commonly found in open grassy areas. About the same size as the least shrew, the masked shrew (Sorex cinereus), appears grayish-brown with a longer tail and prefers low wet areas such as floodplains.

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Nature’s fireworks

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This time of the year brings dazzling firework shows high in the sky. But, look closer to the ground in grassy yards and woodlands, and you will catch that same sense of awe as a myriad of lights burst, creating nature’s very own fireworks display. Watching and catching fireflies is one of the most quintessential summer experiences in the Midwest. There is a giddiness in holding a creature in your hand and watching it glow before it flies away to join the show. Continue reading →

Ground’s abuzz

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During a training hike for volunteer nature guides last week, a fellow naturalist pointed out a series of pea-sized holes in the ground. I walk along this same trail regularly and had never noticed them. As our group stooped around these holes, shivering on this cold but sunny spring morning, a tiny head crept slowly out of the one of the holes. It was the head of a mining bee! Continue reading →

Army of frogs

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My young sons and I recently read a library book together about the names of animal groups. I was struck by how many of the group names match the animals’ behavior or movement: a parliament of owls, a flutter of butterflies, a walk of snails. The boys and I agreed our favorite group name was an army of frogs. Continue reading →