Endangered Animals in Iowa: Species, Laws, and What You Need to Know

Iowa is home to more than 1,100 species of wildlife and fish — but not all of them are thriving. The state’s prairies have been reduced by more than 99 percent, about 95 percent of its prairie pothole wetlands have been drained, and over half of the original forest has been lost. Those losses have pushed dozens of animals to the edge.

If you live, work, or spend time outdoors in Iowa, knowing which animals are protected — and what the law requires of you — matters more than most people realize. Whether you’re a landowner, a hunter, a hiker, or just someone who spotted an unusual creature, this guide walks you through everything you need to know about endangered animals in Iowa.

Key Insight: Iowa currently has 47 endangered animals and 35 more that are threatened, with additional species under federal protection. Interacting with any of them incorrectly can carry serious legal consequences.

How Endangered Species Are Listed and Protected in Iowa

Iowa’s endangered and threatened species law was enacted in 1975. The current law, entitled Endangered Plants and Wildlife, is Chapter 481B of the Code of Iowa. The Natural Resource Commission and the Director of the Department of Natural Resources are responsible for administration of Chapter 481B.

Under this framework, animals are sorted into distinct categories based on the severity of their risk. Understanding the difference between these designations helps you know exactly what level of protection applies to a species you might encounter.

• Endangered: Endangered species are those at the highest risk of extinction across all or a significant portion of their range, receiving legal protections to prevent harm and habitat loss.
• Threatened: Threatened species are likely to become endangered in the foreseeable future and also enjoy legal protection aimed at preventing their decline.
• Special Concern: Special concern species are not yet classified as endangered or threatened but face potential risks related to their status or distribution; they may receive some protection under specific regulations, though not as comprehensive as the other two categories.

Today, there are more than 100 species on the state’s endangered, threatened, or special concern lists, including nine species that are federally endangered. It’s worth noting that Iowa’s rules are evolving: the Iowa DNR recently reviewed Iowa Administrative Code Chapter 77 titled Endangered and Threatened Plant and Animal Species and proposed revisions that would include only those plant and animal species identified as endangered or threatened, eliminating the classification of “special concern” species.

For a broader look at how habitat loss and human activity have driven species to extinction across history, the story of extinct animals worldwide puts Iowa’s conservation challenges into sharp perspective.

Important Note: The Iowa Natural Areas Inventory (INAI) is the state’s primary database for tracking rare species. Information in the database comes from surveys to locate rare plants and animals in their natural habitats, museum collections, scientific literature, and observations from naturalists around the state — with over 19,000 records ranging from the 1800s to present day.

Federally Listed vs. State-Listed Endangered Animals in Iowa

Iowa operates under two overlapping layers of protection: the federal Endangered Species Act (ESA) and Iowa’s own state law. These systems work together but are not identical, and knowing which applies in a given situation can be critical.

The federal Endangered Species Act of 1973 provides for the identification, listing, and protection of both threatened and endangered species and their habitats. ESA administration and enforcement are the responsibility of the U.S. Fish and Wildlife Service and the National Marine Fisheries Service. At the state level, Iowa’s Chapter 481B runs in parallel, covering species that may not be federally listed but are still at risk within Iowa’s borders.

Maps from the USDA Natural Resources Conservation Service highlight each species’ range in Iowa — counties filled with a lighter color are only federally protected, while those with a darker color are both state and federally protected. This means a species may carry different levels of protection depending on where in Iowa you encounter it.

The state list includes all federally listed endangered and threatened species that occur in Iowa. So if a species is federally endangered, it is automatically also on Iowa’s state list — but the reverse is not always true. Some animals are state-endangered without being federally listed.

Notable Endangered Animals Found in Iowa

The state of Iowa is home to more than 1,100 species of wildlife and fish. The current list of endangered animals comprises four mammals, seven birds, eight fish, eight reptiles, two amphibians, two butterflies, seven land snails, and nine freshwater mussels. Here are some of the most significant species you should know.

Indiana Bat

Indiana bats sometimes hibernate in massive groups in select caves across their range, although the Iowa populations are smaller. Other hibernating populations can run in excess of 20,000 bats, with some populations numbering as many as 50,000. If disturbed too early, the bats leave the cave in droves and quickly freeze to death due to their small size. Due to repeated disturbances by humans and huge death tolls on local populations, the Indiana bat was first listed as a federally endangered species in 1967.

Piping Plover

This plump, sparrow-sized bird is the most endangered bird in Iowa. Estimates are that there are only about 6,000 piping plovers left in the US today. If you do see them, they are often along the Missouri River, on the high, dry side of beaches along Iowa waterways. Humans’ disruption of their nesting sites is thought to be the only cause of the piping plover’s endangered status.

Common Barn Owl

The North American bird of prey was added to Iowa’s endangered species list in 1977. They are found in every continent except Antarctica, but spotting one in Iowa is an exceptionally rare event. The barn owl prefers to roost in old tree cavities, but much of the mature forest in Iowa has been cut down for farming. That led the owls to take to abandoned farmhouses, barns, and church towers. The barn owl does not hoot and instead makes a variety of hisses and shrieks to communicate. As dilapidated buildings are removed and forests shrink, the barn owl is again losing much of its habitat, leading to its endangered classification in Iowa.

Pro Tip: Iowa began a barn owl nesting box program in 1983 to help protect the species and has since seen more than 130 young produced. You can support this effort by building and installing a nesting box on your property.

Great Plains Skink

The Great Plains Skink is the largest skink — almost 14 inches — in the central and eastern U.S., a lizard that loves grasslands and can detach its own tail to escape from a predator. Although these reptiles were once popular throughout the state, the species is now relegated to Iowa’s southwestern corner, with only a few sightings of the lizards in the past few years. Their decline is tied to the loss of native grassland habitat — the same pressures that threaten many of Iowa’s most visually striking animals.

Poweshiek Skipperling

Described as “possibly the rarest butterfly in the world,” the Poweshiek Skipperling looks much like a moth when in flight. In Iowa, they prefer what’s so hard to find: tallgrass prairie and peat-accumulating wetlands. The Poweshiek Skipperling is federally endangered.

Plains Pocket Mouse

Despite its small size — just about 5 inches long, half of which is tail — this little mouse digs burrows in sandy soil and takes dust baths to stay cool and keep parasites at bay. Though its range extends from the Dakotas down to Mexico, habitat loss due to urbanization has made the plains pocket mouse endangered in Iowa.

Crawfish Frog

The crawfish frog (*Lithobates areolatus*) is an endangered species associated with stream valley ponds. Fish prey on young frogs and frog eggs, and optimal breeding pools are 1–2 feet deep, hold water for 2–3 months in the spring, and include trees in surrounding areas. Wetland drainage and agricultural runoff have significantly reduced suitable habitat across Iowa. To understand the full scope of how species disappear from ecosystems, it helps to read about animals that have already gone extinct.

What You Cannot Do Around Endangered Animals in Iowa

Iowa law is explicit about what actions are prohibited when it comes to listed species. Ignorance of these rules is not a legal defense, so understanding the restrictions clearly is essential — especially if you spend time in rural areas, near waterways, or on undeveloped land.

According to Iowa Administrative Code 481A and 481B, a person shall not take, possess, kill, trap or ensnare, transport, import, export, process, sell or offer for sale, buy or offer to buy, nor shall a common or contract carrier transport or receive for shipment, any species — plant or animal — on the state list.

Under the federal ESA, the prohibited conduct is similarly broad. The Endangered Species Act prohibits individuals from taking listed species. To “take” a species is to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, collect, or attempt to engage in any such conduct with a listed species.

Important Note: Under the Endangered Species Act, the protection of an individual’s property from a listed species is not considered a permissible defense against potential federal penalties. For example, an individual cannot kill a listed animal to prevent damage to a house, a building, or other piece of property unless the individual was also protecting himself or herself from bodily harm.

There are narrow exceptions. Iowa law does allow the capture, possession, sale, or purchase of listed species for scientific, education, or rehabilitation purposes, or for propagation in captivity to ensure the survival of a species (Iowa Administrative Code [571] Chapter 111). Permits may also be issued upon showing good cause where necessary to reduce damage to property or to protect human health.

Beyond direct harm, you should also avoid disturbing known habitat areas. Avoid disturbing timber surrounding woodland pools where species like the crawfish frog breed. Similarly, avoiding prescribed burns and mowing during active skink periods, removing invasive plant and animal species, and preventing grassland overgrazing are all practices recommended to protect sensitive species. For comparison, understanding poisonous animals in Iowa can also help you make better decisions about what to approach — or leave alone — in the field.

Endangered Species on Private Land in Iowa

One of the most common misconceptions about endangered species law is that it only applies to public land. It does not. If a protected species lives on, passes through, or nests on your property, the law still applies to you.

According to a U.S. Fish & Wildlife Service report, approximately half of the species listed as endangered or threatened have around 80 percent of their habitat on privately owned land. Because federal law prohibits harmful interactions — including an activity that adversely modifies a species’ habitat — with listed species, private property use can be regulated unless a landowner receives federal approval.

If you plan to develop, clear, or significantly modify your land, you may need to take additional steps before proceeding:

1. Request an Environmental Review — Iowa DNR’s PERMT website offers 24/7 access for Environmental Review Requests. The letter of review does not constitute a permit; other permits may be required from the Department or other state or federal agencies in advance of work.
2. Apply for an Incidental Take Permit — Private landowners who plan to modify their land can apply for an incidental take permit, which authorizes the incidental taking of a listed species even if a member of the species is potentially harmed. Before a permit is granted, property owners must submit a habitat conservation plan.
3. Consider Voluntary Conservation Programs — The Iowa DNR’s Conservation Reserve Program allows land to be idled — turned into a suitable conservation habitat for species — by anyone willing. This is a proactive way to protect wildlife while potentially qualifying for federal incentive payments.

Pro Tip: Conserving these species for future generations requires the coordinated effort by public agencies, private organizations, and property owners. Voluntary habitat programs are often the most effective — and legally safe — option for landowners who want to do the right thing without risking violations. Learn more about responsible land and animal stewardship through resources on farm animals and their habitat needs.

The Endangered Species Act also created the Cooperative Endangered Species Conservation Fund to award grants to states for voluntary projects on non-federal lands. If you’re a private landowner in Iowa, these funding opportunities can help offset the costs of habitat restoration or maintenance.

How to Report an Endangered Animal Sighting in Iowa

Reporting what you see in the wild is one of the most valuable things you can do for Iowa’s endangered species. Wildlife managers depend on sighting data to track populations, identify new habitat areas, and make conservation decisions. You don’t need to be a biologist to contribute useful information.

The Iowa Natural Areas Inventory (INAI) interactive website combines current technologies to bring threatened, endangered, special concern, and selected rare species data and maps to professional natural resource managers as well as to the public. Information in the database comes from a variety of sources, including surveys to locate rare plants and animals in their natural habitats, museum collections, scientific literature, and observations from naturalists around the state.

Here’s how to report a sighting effectively:

1. Document the encounter — Take a clear photograph if it is safe and does not disturb the animal. Note the date, time, and exact location (GPS coordinates are ideal).
2. Identify the species if possible — Use the USDA Iowa Threatened & Endangered Animal ID Guide to help confirm what you’ve seen before submitting.
3. Submit through the Iowa DNR — Visit the Iowa DNR’s threatened and endangered wildlife page to find current submission options, including through the INAI database.
4. Contact your local Iowa DNR wildlife biologist — For urgent sightings or injured animals, contacting a regional DNR office directly ensures faster response.

Pro Tip: Any sightings of endangered animals should be reported, with a photograph if possible. Even a single verified sighting can update a species’ range map and trigger additional protections for that area.

Over 19,000 records are contained in the INAI database, ranging from historical observations made in the 1800s to present day sightings. Your observation could become part of that permanent scientific record — and directly inform how Iowa manages its most vulnerable wildlife. You can also explore how other states handle similar challenges, such as endangered animals in Washington and endangered animals in Virginia, for additional context on regional conservation approaches.

Penalties for Harming or Taking an Endangered Animal in Iowa

Iowa and federal law both carry real consequences for violations involving protected species. The penalties are designed to reflect the seriousness of the harm — not just to the individual animal, but to the species as a whole.

Iowa State Penalties

Violations of the provisions of Chapter 481B for threatened or endangered species are misdemeanors punishable by a fine of up to $100. In addition to the misdemeanor penalty, a person convicted of unlawfully selling, taking, catching, killing, injuring, destroying, or having in possession any animal listed as threatened or endangered is required to reimburse the state $1,000 per listed animal.

That means if you’re found with multiple protected animals in your possession — even unintentionally — the reimbursement requirement stacks per animal. A single encounter with a protected species can quickly become a significant financial liability.

Federal ESA Penalties

Under the Endangered Species Act, individuals who knowingly take a listed species can be fined up to $25,000 per each violation or instance. Individuals who otherwise unknowingly take a species can be fined up to $500 for each violation or instance.

Common Mistake: Many people assume that if they didn’t intend to harm a protected species, they can’t be penalized. Under Iowa state law, the $1,000 per-animal reimbursement applies regardless of intent. Always verify the status of any animal before handling, collecting, or disturbing it.

Beyond fines, documentation violations constitute grounds for forfeiture to the Iowa DNR. This means any equipment, vehicles, or materials used in the commission of a violation can also be seized. The legal framework is intentionally comprehensive — it’s designed to protect animals that, once lost, cannot be brought back.

If you’re uncertain whether a planned activity on your property might affect a protected species, the safest course is always to request an environmental review from the Iowa DNR before proceeding. The review process is free, and the Iowa DNR’s threatened and endangered wildlife program is the right starting point. Compare how neighboring states handle similar legal frameworks — such as endangered animals in West Virginia — to see how Iowa’s approach fits into the broader regional picture.

Iowa’s endangered animals have survived dramatic habitat loss, agricultural transformation, and decades of population pressure. Whether you’re a landowner, an outdoor enthusiast, or simply a curious resident, understanding the rules around these species — and choosing to follow them — is one of the most direct ways you can contribute to keeping Iowa’s wildlife intact for future generations.