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A brown and white bald eagle soars on a sunny winter day. In the background are tree branches. On the top right, a logo celebrating Illinois Department of Natural Resources being established for 100 years overlays the image of the eagle.

Illinois Department of Natural Resources Centennial as a State Agency: 1925–2025

Aquatic Organisms | Land | People | Wildlife | 100th Anniversary | History of Conservation


Six brown bison graze on a prairie with pink flowers interspersed throughout.

Plant and Bird Responses to Bison Grazing at Nachusa Grasslands

Land | Research | Wildlife | Habitat Management or Enhancement | Mammals | Places to Visit | Prairie or Grassland


A group of high school aged students stand together in two rows. The teacher stands to the right of the students in the second back row.

Voices for the Future: Everyone Can Make a Difference

Aquatic Organisms | Land | People | Wildlife | Regulations | Youth


Oak leaves curled up and deformed do to herbicide drift on an oak tree limb.

The Silent Trespasser: How Herbicide Drift is Threatening Illinois’ Wild Landscapes

Land | Research | Habitat Management or Enhancement | Plants


A map holds up a very large fish while standing in front of a large fresh water lake. A bright blue sky is reflected in the waves of the lake in the background. Overlaying the image in the top right is a gray map of the state of Illinois with a star indicating Grundy County in the upper north corner of the state.

Heidecke Lake: Fisheries Management at a Former Power Plant Cooling Lake

Aquatic Organisms | Land | Fishing | Places to Visit


An orange and brown butterfly gather's nectar on a cluster of purple flowers. In the background is a lush green grassland with trees to the left in the background against a bright blue sky to the right.

Seed Rescue

Land | Habitat Management or Enhancement


A man wearing tan waders stands in shallow water of a pond. In front of the man is a wire mesh enclosure protecting native aquatic plants so they can become established.

Good Habits for Good Aquatic Habitat

Aquatic Organisms | Land | Recreation | Fishing | Habitat Management or Enhancement


A group of people stand under the shade of a maple tree and discuss the operational plan of a prescribed burn. Most individuals are wearing fire retardant clothing. In the background is a small house, a trailer pulled by a pickup truck with fire fighting gear, and a gray car.

Barb Heyen Builds a Conservation Team

Land | People | Wildlife | Habitat Management or Enhancement


Dainty white flowers with five petals and little yellow centers are blossoming amongst new leaves on a bush in springtime.

Serviceberry: A native plant for all seasons

Land | Wildlife | Birds | Habitat Management or Enhancement | Mammals | Plants


A gray and orange squirrel sits in a green lawn and eats a nut. In the background are large rocks framing the edge of a driveway next to a gray car.

Nuts and Niches: How Two Illinois Squirrel Species Share the Landscape

Land | Research | Wildlife | Mammals | Research


A gray, white shorebird with a black stripe on its forehead and on its collar stands on a sandy beach. The bird has bands around each leg identifying it for research purposes.

Endangered Piping Plovers Making History in Illinois

Land | People | Wildlife | Endangered and Threatened Species | Natural Heritage Pick | Places to Visit | Rivers and Lakes


A bald eagle with white feathers on its head and black feathers on its body perches on a tree branch against a bright blue sky.

Eagles Abound at the Fulton-Mason Eagle Day, February 1, 2025

Land | Recreation | Wildlife | Birds | Rivers and Lakes | wildlife viewing


A damp brown furred water loving muskrat stands partially submerged in a wetland surrounded by vegetation in the water.

The Muskrat, A Wetland Architect

Land | Recreation | Wildlife | Mammals | Trapping | Wetland


A brown, tan and black chipmunk picks up an acorn resting on a gravel surface.

A Society of Acorn Relocators

Land | Wildlife | Birds | Forest | Habitat Management or Enhancement | Mammals | Plants


A close-up of a brown bat.

Bats Go Where the Trees Are in Cities

Land | Research | Wildlife | Bat | Mammals | Research | Urban Wildlife


An aerial view of a prescribed burn conducted on a woodland. Running alongside the prescribed burn is a meandering river.

The Essence of Illinois

Land | Wildlife | Habitat Management or Enhancement


A group of people stand together and pose for a photo on a green lawn. In the background is a green leafy tree. In the foreground is a concrete sidewalk.

Restoring Volo Bog

Land | People | Habitat Management or Enhancement | Places to Visit | Plants | Wetland


An illustration of an autumn view looking over prehistoric Mississippi river. In the foreground are Native American people gathering acorns under an oak tree framing the image to the top right. A village with homes is in the background at the foot of tall bluffs overlooking the large bottomland on either side of the river. In the far background are bluffs on the other side of the river against a blue sky filled with migrating waterfowl.

Illinois’ River-based Natural Divisions: Lower Illinois River

Land | Recreation | Wildlife | Birds | Fishing | Habitat Management or Enhancement | Hunting | wildlife viewing


An overlooking view of the confluence of the Mississippi and Illinois rivers. A gray map of the state of Illinois with counties outlined in black lines overlays the image in the upper right corner. Two stars highlight Carroll and Jo Davies counties in the upper left corner of Illinois.

Illinois’ River-based Natural Division: Upper Mississippi River

Land | Recreation | Wildlife | Fishing | Hunting | Places to Visit | Rivers and Lakes


A herd of cattle graze on tall green grasses. In the background is a horizon line of trees against a bright clear blue sky.

Working Lands for Wildlife, A USDA Program to Improve Farm Productivity and Enhance Wildlife Habitat

Land | Wildlife | Habitat Management or Enhancement | Wildlife Pick



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