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bats in ohio

Bats in Ohio

Types of Bats in Ohio

Ohio is home to a variety of bat species, each with its own unique characteristics and ecological roles. Here is a comprehensive overview of the different types of bats found in Ohio:

  • Little Brown Bat (Myotis lucifugus): The little brown bat is one of the most common bat species in Ohio. These small, insect-eating bats are known for their glossy brown fur and can be found in a wide range of habitats, including forests, urban areas, and near water bodies. Unfortunately, their populations have been significantly affected by white-nose syndrome, a fungal disease.
  • Big Brown Bat (Eptesicus fuscus): Big brown bats are another common bat species in Ohio. They are larger than little brown bats and have distinctive dark brown fur. These bats often roost in buildings and are known for their adaptability to urban environments. They primarily feed on flying insects.
  • Eastern Pipistrelle (Perimyotis subflavus): This is one of the smallest bat species in Ohio, with a wingspan of only about 7 inches. They have a reddish-brown or yellowish-brown fur and are known for their agile flight. Eastern pipistrelles are insectivorous and can be found in a variety of habitats, including forests, meadows, and urban areas.
  • Indiana Bat (Myotis sodalis): The Indiana bat is a federally endangered species in Ohio. They have grayish-brown fur and are known for their preference for mature forests, where they roost in trees and caves during hibernation. Protection efforts are in place to conserve their populations.
  • Northern Long-eared Bat (Myotis septentrionalis): Another federally listed endangered species, the northern long-eared bat has long ears and a light brown coat. They are often associated with caves and mines, where they hibernate in winter. Like the Indiana bat, they are threatened by white-nose syndrome.
  • Hoary Bat (Lasiurus cinereus): Hoary bats are relatively large and have distinct frosted or "hoary" fur. They are solitary and migratory, often found in forested areas. Hoary bats primarily feed on moths and other large insects.
  • Silver-haired Bat (Lasionycteris noctivagans): Silver-haired bats are characterized by their dark fur with silver-tipped hairs. They are solitary and tend to roost in tree foliage. These bats feed on a variety of insects, including moths, beetles, and flies.
  • Red Bat (Lasiurus borealis): Red bats are known for their striking reddish or chestnut fur. They are tree-roosting bats, often hanging from branches in dense foliage. These bats feed on flying insects, such as moths and beetles.
  • Eastern Red Bat (Lasiurus borealis): This bat species closely resembles the red bat in appearance and behavior. They are tree-roosting and primarily insectivorous. Eastern red bats are found in a variety of forested habitats.
  • Tri-colored Bat (Perimyotis subflavus): Tri-colored bats are named for their fur, which features three distinct colors: yellowish-brown, pinkish, and grayish. They prefer to roost in tree foliage and are insectivorous.

Many bat species in Ohio face threats, including habitat loss, pesticide exposure, and diseases like white-nose syndrome. Conservation efforts are crucial to protect these valuable and ecologically important creatures. Additionally, bats play a vital role in controlling insect populations, making them an essential component of Ohio's ecosystems.


Bat guano is the excrement or droppings of bats, and it holds significant ecological and economic importance. It is composed of the waste materials produced by bats, primarily consisting of feces and urine. Bat guano can vary in appearance, color, and consistency depending on the bat species, diet, and habitat. Here's an overview of bat guano:

Composition: Bat guano is rich in organic materials, including nitrogen, phosphorus, and potassium, which are essential nutrients for plant growth. It also contains other trace elements and micronutrients. Its nutrient content makes it a valuable natural fertilizer.


  • Fertilizer: Historically, bat guano has been prized as a potent fertilizer. Its high nutrient content, particularly in phosphorus, makes it beneficial for improving soil fertility and promoting plant growth. It has been used in agriculture for centuries and was especially valuable during the 19th century as a source of phosphorus for farming.
  • Cave Exploration: Bat guano deposits in caves can be used by researchers to study bat populations and their behavior over time. It can also help with dating the age of caves and archaeological sites.
  • Historical Uses: In the past, guano was a valuable commodity and was mined extensively from remote islands and caves for use as a fertilizer. This led to territorial disputes and even wars in some cases, known as the "guano wars."

Bat Species: Different bat species produce guano with varying characteristics. Some bats produce guano in the form of pellets, while others produce it in a more liquid form. The composition of guano can also differ based on the diet of the bats, with insect-eating bats producing guano with a higher nitrogen content.

Ecological Role: Bat guano plays a crucial ecological role in nutrient cycling. Bats feed on insects, which are rich in nutrients. When bats excrete guano in their roosting sites, it deposits these nutrients back into the ecosystem. This can have a positive impact on the health of the plants and animals in the area.

Conservation: Protecting bat populations is essential for maintaining the supply of guano for ecological processes and potential agricultural use. However, bat populations worldwide face various threats, including habitat loss, white-nose syndrome, and pesticide exposure. Conservation efforts are critical to safeguard both bats and their guano-related ecological contributions.

Health Concerns: Bat guano can pose health risks to humans if not handled properly. It may contain pathogens and fungal spores that can cause respiratory issues or diseases. Therefore, individuals who work with guano, such as cave explorers or guano miners, should take precautions and wear appropriate protective gear.

Bat guano is a valuable natural resource with historical and agricultural significance. Its high nutrient content makes it an effective fertilizer, and its role in nutrient cycling contributes to the health of ecosystems. However, the conservation of bat populations and proper handling of guano are essential considerations for both ecological and health reasons.

Bat Houses

Bat houses, also known as bat boxes, are artificial structures designed to provide shelter and habitat for bats. These specially designed structures offer a safe and alternative roosting site for bats, especially in areas where natural roosting sites, such as caves and old trees, are scarce. Here's an overview of bat houses:

Purpose: The primary purpose of bat houses is to provide a suitable and secure roosting place for bats. Bats play a crucial role in ecosystems by controlling insect populations, making them valuable allies in pest control. By providing bat houses, you can encourage these beneficial creatures to establish colonies near your property, helping to manage local insect populations naturally.

Design: Bat houses come in various designs, but the most common types are typically wooden boxes or panels. The design and size of a bat house depend on the species of bats you want to attract. Some key design considerations include:

  • Chamber size: Different bat species prefer different-sized chambers. Research on the local bat species can help determine the appropriate dimensions.
  • Temperature regulation: Bat houses should be designed to provide a stable and warm environment, especially for maternity colonies. They often have multiple chambers to accommodate different temperature preferences.
  • Roosting surface: Internal surfaces of bat houses often have grooves or rough textures to provide bats with a secure foothold.

Placement: Proper placement is crucial for the success of a bat house. Key considerations include:

  • Sunlight: Bat houses should receive at least six hours of direct sunlight each day to maintain optimal temperature conditions.
  • Height: Bat houses should be mounted high (usually 10 to 20 feet above the ground) to prevent predators from accessing the bats.
  • Clear flight path: Ensure there are no obstacles in the immediate vicinity of the bat house that might obstruct bats' flight paths.

Maintenance: Regular maintenance is important to keep bat houses in good condition. This includes cleaning them every few years to remove guano and inspecting for any damage or wear.

Attracting Bats: Attracting bats to your bat house may take some time. It's often easier to attract bats to areas where they are already present. Providing a water source and planting native vegetation can help create a suitable environment for bats.

Local Regulations: It's essential to check local regulations and permits related to bat houses, especially if you plan to attract bats to your property.

Species: Different bat species have varying preferences for roosting sites, so it's important to research which species are present in your area and design your bat house accordingly.

Conservation: Bat houses can contribute to bat conservation efforts by providing alternative roosting options, especially in areas where natural roosting sites have been lost due to habitat destruction or disturbances.

Bat houses are artificial structures designed to provide shelter for bats, offering numerous benefits such as pest control and bat conservation. Proper design, placement, and maintenance are essential for the success of bat houses, and they can be a valuable addition to both residential and conservation efforts.

Bat Removal

Professional bat removal is a specialized service provided by trained and licensed professionals to safely and humanely remove bats from residential or commercial properties. This service is typically sought when bats have taken up residence in a building or structure and their presence poses health and safety concerns. Here is an overview of professional bat removal:

  • Assessment and Inspection: The process begins with a thorough assessment and inspection of the property by a licensed bat removal expert. They identify the species of bats involved, the extent of the infestation, and the entry and exit points used by the bats.
  • Legal Compliance: Professional bat removal is subject to local, state, and federal regulations. Bat removal experts are required to comply with these regulations, which often include restrictions on the timing of removal (to avoid disrupting maternity colonies during pup-rearing season) and the humane treatment of bats.
  • Exclusion and Eviction: One common method used by professionals to remove bats is called exclusion. This involves sealing off all entry and exit points except for one-way bat valves or doors. These devices allow bats to leave but prevent them from re-entering the building. This process is often done during the evening when bats are most active.
  • Guano Removal and Cleanup: Bat droppings, or guano, can accumulate in attics and other roosting areas, posing health risks due to the potential transmission of diseases like histoplasmosis. Professional bat removal often includes the safe removal and disposal of guano, as well as cleaning and disinfecting affected areas.
  • Repairs and Prevention: After the bats have been removed, the professional will repair any damage caused by the bats and seal off potential entry points to prevent future infestations. This may involve repairing roof vents, gaps in eaves, or damaged screens.
  • Educating the Property Owner: Professional bat removal experts often provide education to property owners about bats, their ecological importance, and the steps that can be taken to prevent future bat infestations. They may also offer advice on bat-friendly practices, such as installing bat houses to provide alternative roosting sites.
  • Safety Measures: Safety is a paramount concern during bat removal. Professionals wear appropriate personal protective equipment (PPE) to minimize the risk of exposure to diseases carried by bats, such as rabies and histoplasmosis. They also take precautions to prevent harming the bats during the eviction process.
  • Humane Practices: Professional bat removal is conducted using humane methods that prioritize the well-being of the bats. Killing or exterminating bats is generally not considered an ethical or effective solution and may even be illegal in some jurisdictions.
  • Follow-Up: Many professional bat removal services offer follow-up inspections to ensure that the bats have been successfully excluded from the property and that there are no new entry points. This helps ensure the long-term success of bat removal efforts.

Professional bat removal is a specialized service that involves the humane and safe removal of bats from buildings, followed by repairs, cleanup, and prevention measures to avoid future infestations. It is important to hire a licensed and experienced professional to ensure that bat removal is conducted in compliance with all relevant laws and regulations and that the welfare of the bats is considered throughout the process.

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