Armadillos, with their distinctive armored shells and shuffling gait, are a unique component of the American wildlife landscape. For residents and visitors in Missouri, encountering information about these animals often raises a specific question regarding their presence and habits in the region. Understanding whether these creatures are native to the state or merely passing through requires an examination of their biological needs and the environmental conditions found there.
Current Population Status in Missouri
The short answer to whether armadillos live permanently in Missouri is no; they do not maintain established, year-round populations in the state. However, their range has been expanding for decades, driven by a natural shift in response to changing climate and habitat. Sightings are increasingly common, particularly in the southern and central portions of Missouri, where the landscape offers suitable conditions for temporary foraging and shelter.
Factors Influencing Migration
Armadillos are primarily creatures of warmer climates, thriving in the temperate and subtropical zones of the southern United States. Their northward movement into Missouri is a relatively recent phenomenon, tracked closely by wildlife biologists. While they cannot survive the deep, sustained freezes of a typical Missouri winter, milder winters and the urban heat island effect allow individuals to push further north than historically possible.
Expansion of suitable habitat due to reforestation. Reduced predation in rural and suburban areas.
Adaptability to various food sources, including insects and grubs.
Behavior and Habitat Preferences
When armadillos are present in Missouri, they tend to favor areas that mimic their natural environment. They are fossorial animals, meaning they are adept diggers, and they require loose, well-drained soil to excavate burrows for resting and raising young. River valleys, forest edges, and areas with sandy or loamy soil are prime locations for these temporary shelters.
Their nocturnal lifestyle means they are most active at night, spending daylight hours hidden in their burrows. An armadillo's diet consists almost entirely of invertebrates, with a particular fondness for beetle larvae, ants, and other insects found in lawn and garden soil. This feeding habit, while natural, often brings them into conflict with homeowners.
Impact on Lawns and Gardens
The foraging behavior of armadillos can cause significant damage to turf and garden beds. As they dig in search of food, they create a series of shallow, 3 to 5-inch deep holes that disrupt the root system of grass. This damage is often mistaken for that caused by moles, but the key difference lies in the structure of the holes, which are conical and lack the complex tunnel systems created by moles.
Homeowners in areas with frequent armadillo activity may notice raised veins of soil or areas of dead grass. While they do not eat plants directly, the destruction of the root structure can lead to the decline of landscaping. Managing these impacts involves modifying the environment to make it less attractive to the insects that draw the armadillos in the first place.
Legal and Safety Considerations
In the state of Missouri, armadillos are classified as unprotected nongame species. This status means that property owners experiencing issues with these animals have the legal right to remove them. However, specific regulations regarding the methods of removal and the handling of live animals should be verified with the Missouri Department of Conservation to ensure compliance with local ordinances.
Beyond property damage, there is a health consideration regarding armadillos. They are the only known natural reservoir of *Mycobacterium leprae*, the bacterium that causes Hansen's disease, or leprosy. While the risk of transmission to humans in Missouri is considered low, direct contact with the animal, particularly its bodily fluids, should be avoided. Gloves and thorough handwashing are recommended if handling is necessary.
