How to Identify the Species of Bats in My Home


As a professional wildlife control professional, it is essential to accurately identify the species of bats that have taken up residence in your home. Understanding the specific bat species is crucial for an effective and humane removal process. In this article, we will explore the different methods and characteristics used to identify bat species, enabling you to make informed decisions and seek professional assistance when necessary.

Physical Characteristics

Physical characteristics play a vital role in distinguishing bat species. Size, coloration, and wing shape are key factors to consider. Some common physical characteristics used for identification include:

1. Size: Bats come in various sizes, ranging from small to large. Measuring the wingspan and body length can help determine the species.

2. Coloration: Observe the color patterns on the bat’s fur. Different bat species can have diverse color variations, including shades of brown, gray, or even reddish hues.

3. Wing Shape: Analyzing the shape of the wings is essential. Some bats have long, narrow wings, while others may have broader, more rounded wings.

Behavioral Patterns

Bats exhibit distinct behavioral patterns, which can aid in species identification. Observing their behavior can provide valuable insights:

1. Flight Patterns: Pay attention to how bats fly. Some species have erratic flight patterns, while others fly in a more straight and direct manner.

2. Emergence Time: Note the time bats leave their roosting sites. Different species emerge at specific times, such as at dusk or later at night.

3. Habitat Preferences: Consider the habitat preferences of the bats. Some species prefer caves, while others roost in trees, buildings, or even underground.

Roosting Habits

Understanding the roosting habits of bats is crucial for accurate identification. Here are some key points to consider:

1. Roost Location: Take note of where the bats roost. Some species prefer attics, while others may choose wall voids, chimneys, or even tree hollows.

2. Group Size: Observe the size of the bat colony. Some species tend to roost in large groups, while others may prefer solitary or smaller colony sizes.

3. Roosting Materials: Pay attention to the materials used for roost construction. Some bats use leaves, while others may create intricate structures using saliva.

Echolocation Calls

Bats use echolocation to navigate and locate prey. Analyzing their echolocation calls can provide valuable information for species identification:

1. Frequency Range: Each bat species emits echolocation calls within a specific frequency range. Specialized equipment can be used to record and analyze these calls for accurate identification.

2. Pulse Length: The length and pattern of echolocation pulses can vary between species. Analyzing these pulse characteristics can assist in identification.

3. Call Structure: Different bat species produce distinct call structures. Some may emit constant frequency calls, while others produce frequency-modulated calls.

Seek Professional Assistance

While these identification methods can be helpful, it is essential to note that accurately identifying bat species can be challenging for the average homeowner. Therefore, it is recommended to seek professional assistance from wildlife control experts who have the knowledge, experience, and equipment necessary for proper identification.

By consulting with professionals, you can ensure that the identification process is accurate, allowing for appropriate measures to be taken, such as exclusion techniques, habitat modification, or bat removal services, all while adhering to local regulations and guidelines.


Identifying the species of bats in your home is a task best left to the experts. By considering physical characteristics, behavioral patterns, roosting habits, and echolocation calls, professional wildlife control professionals can accurately determine the bat species present. Seeking their assistance ensures a humane and effective approach to resolving bat infestations, protecting both your home and the bat species involved.