Richard Ward

 Tags: Home Inspection

Bats are nocturnal creatures, meaning they’re active at night. For homeowners who suspect they have bats living with them, several signs of bats at night can confirm this. Here are five signs of bats at night.

1. Chattering

Bats produce a sound higher than the human’s ability to hear, but they also emit a vocal chattering that won’t go unnoticed. This chatting is heard at various times of the day and season. It’s often heard at dusk before they fly out to feed. Homeowners can expect to hear this sound around dawn during July and August, when babies are calling out to their mothers as they return from a night of feeding. The chirp and chatter can be heard inside roosts on a hot day, particularly if a number of them are present. 

Bat detectors are available to capture sounds emitted higher than humans’ hearing capacity. Bats use echolocation: A form of communication where the sound travels out to the environment until it hits something. Detectors make this noise available to humans, as it’s actually at a decibel well above the human hearing range. Hearing their conversation as they go to and from the roost at night is one way to tell if you have bats.

2. Feeding Roosts

Different roosts have different purposes. Bats have a roost for sleeping and a roost for feeding. Their night roosts are close to foraging areas. The autumn season is often when they begin using transitional roosts because it’s in between their main breeding and hibernation season. 

Spotting a feeding roost is one of those signs of bats at night. Bats choose a desirable location to visit on a nightly basis. They eat insects, fruit, nectar, and pollen, and their feeding roost is a place to digest that food, use the bathroom, and leave by dawn. While you may not see bats at this roost during the day, it’s noticeable due to the pile of guano left on the ground around it.

3. Emergence Surveys

Watch the building at dusk to see if any bats emerge. Summer months are the best time to conduct these surveys, as bats are the most active during this time. Surveys are often conducted at dusk and dawn between May and September to see if bats are present in the structure.

The primetime to see bats are the few hours after sunset or before dawn. An ecologist may perform this survey, examining the type of roost, the entry, and exit points. They’ll locate where the bats are staying what they’re using to get in.

4. Mating

Bats have a unique mating behaviour, which begins in late summer and continues until early fall. This is one of the signs of bats at night, as mating takes place during this time. It can take place during the day but this is not often the case. They swarm together, performing unique and extraordinary acrobatics to impress other mates.

5. Scratching

These nocturnal animals make most of their noise in a schedule opposite to humans, and scratching is another one of the signs of bats at night. You’ll likely hear it on their way in and out of the roost. If bats happen to live in your attic, you may hear scratching along the walls as they move throughout the space. Bats also leave scratch marks on the surfaces they perch to, which are bound to become noticeable—whether it’s ductwork inside or outside around an entry point.

If these signs of bats at night sound familiar, don’t hesitate to call humane bat removal services. They can make your home bat-free, help with cleanup and restoration, and ensure they don’t return.


Richard Ward

With four years of experience as a wildlife technician, Richard has worked for All Wildlife Removal Inc. as a technician since 2015 and is now the Operations Manager.