Not all moths and butterflies should be treasured. Some, like the spongy moth, are invasive and are harming local habitats.
Monarch populations have plummeted by more than 80% over the past two decades, and a known pathogenic parasite may be contributing to the devastating decline more than previously thought.
Male and female pileated woodpeckers look similar, but they are not identical. If you look closely at the coloring on their heads and faces, you can tell the difference.
Everything in nature is connected, so when you use rodenticides to control rodent infestations in and around your home the effects may be more far reaching than you intended.
Get the lowdown on Canada geese, one of our most common and widespread birds.
Cedar waxwings are unique in appearance and are also different from most birds in that they can exist on fruit alone for months at a time.
Here are five fun facts about our curious white-tailed deer.
Illinois is home to many sparrow species, and telling one from another is no easy task. Learn some of the key ID features among our most common sparrows.
Raccoons can be just as troublesome as squirrels around bird feeders, but there's a few tricks to keep them away.
Have you ever heard an ice-covered lake creaking or groaning? It's normal in winter because of how temperature changes affect ice.
The change links one with Sand Ridge Savanna and assigning the other the name Kankakee Sands.
The Forest Preserve District has launched a redesigned website featuring streamlined navigation, a revamped event calendar, faster performance and an improved mobile experience.