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Common Animals in Austin That Are Invasive Species

by
Apr 18th, 2025

Austin is known for its incredible biodiversity and commitment to preserving natural ecosystems. 

However, the Texas capital also faces challenges from numerous invasive species that have made their way into the local environment. These non-native animals can disrupt the delicate balance of Austin's ecosystems, outcompeting native species for resources and sometimes causing long-lasting and significant damage. 

Living in or near our luxury Austin apartments puts you in a prime position to learn about and even help monitor these unexpected neighbors — which makes our communities healthier in the long run!

6 invasive species in Austin

Monk parakeets

Among the most colorful invasive species in Austin is the monk parakeet. These bright green birds with gray chests are native to South America but have established thriving colonies throughout Austin — in fact, you've likely spotted them nesting in cellular towers or electrical infrastructure all across the city.

While these charming birds may seem harmless, their large communal nests can damage utility equipment and create fire hazards, especially during hot, dry months. Despite this, many Austinites have developed an affection for these noisy but charismatic birds. Their populations are particularly visible in areas like Hyde Park and along MoPac Expressway.

Feral hogs

Perhaps the most destructive invasive species in the region is the feral hog, whose adaptability to various environments has caused approximately $52 million in agricultural damage annually in Texas alone. In Austin, they've become increasingly common in greenbelts, parks and even some suburban neighborhoods! Areas bordering preserves like the Balcones Canyonlands often report feral hog sightings and damage.

Feral hogs can destroy native vegetation, compete with native wildlife for resources and even pose safety risks to humans and pets who live in outlying neighborhoods. They also reproduce rapidly, with a single sow capable of producing up to two litters per year with 4-12 piglets per litter! This reproductive potential makes controlling their populations particularly challenging. 

Three wild feral hogs grazing on a dusty pathway

Red imported fire ants

Though small in size, red imported fire ants have had an larger-than-life impact on Austin's ecosystems ever since their introduction from South America in the 1930s. These aggressive insects are known for their painful stings and large mound nests that can appear seemingly overnight in lawns, parks and natural areas throughout Austin.

Fire ants displace native ant species, reduce populations of ground-nesting birds and small mammals and can even damage electrical equipment. Their impact extends to nearly every outdoor space in Austin, from Lady Bird Lake's shoreline to neighborhood parks and everywhere in between.

Tiger mosquitoes

The Asian tiger mosquito (Aedes albopictus) has become increasingly prevalent in Austin over recent decades. Recognizable by its distinctive black and white striped legs and body, this invasive insect is not just annoying but can potentially transmit diseases like dengue, Zika and chikungunya.

Unlike some mosquito species that are most active at dawn and dusk, tiger mosquitoes are aggressive daytime biters. They've adapted perfectly to urban environments, breeding in small water containers like flower pots, bird baths and clogged gutters – all of which are common across Austin in the warmer months.

European starlings

The European starling might seem like a natural part of Austin's avian landscape, but these birds were actually introduced to North America in the 1890s as part of an effort to bring all birds mentioned in Shakespeare's works to the continent (yes, really). Today, they're one of the most abundant birds in Austin and across North America.

Starlings compete aggressively with native cavity-nesting birds like woodpeckers and bluebirds for nesting sites. They form enormous flocks that can number in the thousands, creating noise and mess in urban areas. Their adaptability to human environments makes them particularly visible in downtown Austin and surrounding neighborhoods.

A European starling with its speckled white breast resting on a birdhouse

What Austin residents can do about invasive species

As an Austin resident, you can help address the invasive species problem through several approaches:

  • Report sightings of invasive species to the Texas Invasives website, which helps scientists track their spread.
  • Avoid releasing non-native pets into the wild, as this is how many invasive species become established.
  • Consider participating in volunteer removal efforts organized by organizations like Keep Austin Beautiful.

Learning about these common invasive animals helps build awareness of the ecological challenges facing our city, and while these species have become part of Austin's urban ecosystem, understanding their impacts helps us better protect the native biodiversity that makes Austin special. 

Next time you're enjoying Austin's outdoor spaces, take a moment to observe the wildlife around you and consider which species might be relative newcomers to the area.

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Featured photo by Aliaksei Lepik on Unsplash

Second photo by Aliaksei Lepik on Unsplash

Third photo by John Yunker on Unsplash

Author of Article

Colleen Ford is a South African who now lives on Oahu in Hawai'i. She loves to travel, camp, spearfish and hike. She's also part of a super cool canoe club and is pretty decent at it. Colleen enjoys Star Wars and also not being cold ever.

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