Dusk movement
Scratching, chirping, or a flick of wings near a gable as the light drops. You may see them leave one by one.
Wildlife help
Bats are a timing problem, not a dare
A bat in the hallway will empty a room faster than a smoke alarm. Take a breath. Around homes in Indiana, the usual guest is a big brown bat, and it is after insects, not you.
Signs it may be bats
A thin gap
Bats do not need a hole you can put your fist through. A crack about as wide as your thumb, by a soffit, chimney, or fascia, is enough.
Crumbling droppings
Bat droppings pile up and crumble into shiny dust. Mouse droppings stay hard. You still do not have to be sure.
One bat in a room is a small job
If a single bat is circling the living room, close the door to the rest of the house. Open a window or an outside door in that room. Turn off the ceiling fan. Then give it time, and keep people and pets out.
Most of the time it finds the opening. If it is still there later, or if this keeps happening, the house has a door they already know. That is the job we should look at.
A colony in the attic is a calendar job
Females gather in summer to raise pups. Indiana DNR says removal is not advised from about June 1 through August 15, while the young are growing. Up here in northern Indiana, that window can run a little later if the spring was cold.
Pups cannot fly for several weeks. Seal the gap during that time and they are trapped inside. We can inspect and plan in the summer. The actual closing waits until they can leave on their own. Big brown bats are the ones most often in buildings. Indiana is also home to bats that are endangered, including the Indiana bat. We do not guess, and we do not block a roost with babies in it.
Please do not grab one
A bat on the floor may be hurt or tired, especially in late summer when young bats are learning the routes. Do not scoop it up with your hands. A bite can be small and still matter. If someone was bitten or might have been, call a doctor and the health department. That part is separate from the attic work, and it should not wait.
For the house itself, exclusion is the fix: they leave, and the gaps get closed with metal and sealant so they cannot come back. Poison and a sticky trap are not a plan. They are how bats end up in living spaces.
What to do tonight
- If one is in a room, close interior doors, open a way outside, and wait.
- Do not swing a towel at it. Tired bats land, and that is when people get hurt.
- Look at dusk from outside, if you can do it safely. A steady stream from one spot shows us the door.
- If it is summer and you suspect a colony, we can still come look. We just will not seal them in.
Quick answers
Can you take them out this week in July?
We can inspect and get the repairs lined up. Closing the exits waits until pups can fly, which Indiana DNR puts at about August 15, sometimes a bit later up north. Sealing them in would kill the young and bring a smell you do not want in the walls.
Are the droppings dangerous?
A heavy buildup can grow a fungus people should not breathe in dry dust. Do not sweep or vacuum a big pile. A few crumbs are a clue, not a crisis. We will tell you what the amount means after we see it.
The longer official version is on the Indiana DNR: bats in buildings.
Let's make upstairs quiet again.
Tell us what you've noticed. We'll help you take the next step.
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