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A green and brown smallmouth bass fish swimming to the right in murky waters.

Using Long-term Data to Improve Sportfish Monitoring in Illinois Rivers

November 3, 2025 by Robert Mooney, Michael Spear, Brian Ickes, Andrya L. Whitten Harris, Jason A. DeBoer, David Glover, James T. Lamer

Research | Fish | Fishing | Research | Rivers and Lakes

Two men pose next to a harvested adult male white-tailed deer in the bed of a pickup truck. One individual is sitting on the edge of bed of the pickup truck while he holds up the deer's large antlers. The man to the left leans with his arms over the side of the bed of the pick up truck. In the background is a highway overpass.

Chronic Wasting Disease Surveillance in Illinois – Fall 2025 and Beyond

November 3, 2025 by Christopher N. Jacques

Research | Wildlife Health | Wildlife Pick

A brown white-tailed deer walks down a snowy hill in a woodland. Snow is actively falling and accumulating on the ground. Some snow is on the deer's back and head.

Caught on Camera

November 3, 2025 by Sheryl DeVore

Research | Research | Wildlife

A group of gray, black and white Canada geese on a mowed grassy shoreline of a pond. The pond is in the background.

Everyone Poops: The role of Canada geese in transporting bacterial communities

November 3, 2025 by Auriel M. V. Fournier

Research | Birds | Disease Managment | Waterfowl

An orange, black and white butterfly nectars on a pink flower.

Living with Wildlife in Chicago’s Backyard: What 25 Years of Research Tells Us

August 1, 2025 by Samantha G. Pallazza, Craig Miller

Research | Research | Urban Wildlife

A gray, tan and black coyote standing on leaf litter in a woodland looks up at a tree. In the background are trees.

Timing is everything: How habitat, humans, and coyotes influence mammal behavior

August 1, 2025 by Nathan Proudman

Research | Mammals | Wildlife Pick

A woman wearing a hard hat stands next to a large piece of machinery. She stands at one end of a long large bar with rectangular projections at equal intervals down the length of the bar. In the background is another individual wearing a hard hat standing in a parking lot.

A Collaborative Effort to Test a New Tool for Invasive Carp Control

August 1, 2025 by Marybeth Brey

Research | Fish | Habitat Management or Enhancement | Invasive Species

A gray and tan tree squirrel lounges on a tree branch.

Squirrels Just Wanna Have Forest Paths: How Land Cover Shapes Genetic Diversity

August 1, 2025 by Bethany Warner

Research | Habitat Management or Enhancement | Mammals

A brown adult male deer with velvet on its antlers stands in front of a woodland edge.

IDNR Announces New Detection of CWD in Four Additional Illinois Counties

May 1, 2025 by IDNR

Research | Wildlife | Chronic Wasting Disease | Deer | Disease Managment | Diseases | Wildlife Health

A close-up of the dorsal fin of a green and tan fish being held in the palm of a researcher's hand. An orange tag protrudes from the back of the fin.

You Can Contribute to a Study on Bass Movements in Chicago

May 1, 2025 by Austin Happel

Research | Research

A tan and white freshwater mussel nestled in a sandy river bed.

Finding the Elusive Salamander Mussel Alive in Illinois After a Century in Obscurity

February 3, 2025 by Sarah Douglass, Mark Davis

Aquatic Organisms | People | Research | Endangered and Threatened Species | Mussels | Research | Rivers and Lakes

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

Plant and Bird Responses to Bison Grazing at Nachusa Grasslands

February 3, 2025 by Elizabeth Bach, Antonio Del Vallé

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

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

February 3, 2025 by Kim Erndt-Pitcher, Martin Kemper

Land | Research | Habitat Management or Enhancement | Plants

In front of a woodland an adult male white-tailed deer with antlers stands alert. To the right of the male is an adult female white-tailed deer walking towards the edge of the woodland.

Why Are Deer So Successful in Illinois?

February 3, 2025 by Jameson Mori, Nelda A. Rivera

Recreation | Research | Wildlife | Deer | Hunting | Research | Wildlife Pick

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

February 3, 2025 by Nathan Proudman

Land | Research | Wildlife | Mammals | Research

An adult male white-tailed deer is silhouetted against a bright orange sunset while walking across a fallow agricultural field.

Wildlife Research News

February 3, 2025 by Kathy Andrews Wright

Research | Wildlife | Amphibians | Birds | Climate Change | Deer | Research

A white, brown, and black hawk holds a fish in its talons while flying close to the surface of a a freshwater lake.

Can They Hack It? A Decade of Efforts to Re-Establish Osprey in Illinois

November 1, 2024 by Kaleigh Gabriel

Research | Wildlife | Birds | Osprey | Population Successes | Research | Wildlife Health

A scientist wearing orange waders stands in a boat on a river holding a large dark gray fish. In the background is a shoreline filled with trees against a partly cloudy sky.

Black Carp in Illinois: An invasive threat to native ecosystems

November 1, 2024 by Gretchen Steele

Aquatic Organisms | Recreation | Research | Fishing | Habitat Management or Enhancement | Rivers and Lakes

A close-up of a brown bat.

Bats Go Where the Trees Are in Cities

November 1, 2024 by Sean Obrochta, Joy OKeefe

Land | Research | Wildlife | Bats | Mammals | Research

A woodland borders a grassy field to the right. Along the edge of the grassy field are five telephone poles in a row. On top of each pole has section of artificial bark. In the background are trees against a bright blue sky.

An Unexpected Visitor: Genetics reveal unanticipated roost use by hoary bat

November 1, 2024 by Jordyn Chace

Research | Wildlife | Bats | Mammals