How can I chase bats out from under a windowsill? - briefly
Identify and seal any cracks or gaps around the sill, then create a bright light or low‑frequency noise to coax the bats out, and close the opening immediately after they leave. If they persist, attach a one‑way exclusion device that permits exit while blocking re‑entry.
How can I chase bats out from under a windowsill? - in detail
Bats that have entered the space beneath a windowsill can be displaced safely by following a systematic approach.
First, confirm that the animals are indeed bats and not another species. Bats are nocturnal, small, and have a wingspan of 3–5 inches. Their presence usually indicates an opening that allows entry.
Next, prepare the area:
- Wear thick gloves, a face mask, and eye protection to avoid bites and exposure to droppings.
- Close all interior doors and windows to prevent the bats from moving into other rooms.
- Dim the lights; bats are attracted to darkness and will be more likely to stay in the darkened zone.
Create an exit route:
- Identify the smallest opening through which the bats can leave, such as a gap around the window frame or a vent.
- If the opening is too small, enlarge it carefully using a screwdriver or a small pry tool, ensuring the alteration does not damage the structure.
- Place a bright, narrow light source (e.g., a flashlight) at the far end of the exit. The light will encourage the bats to move toward the illumination.
Encourage departure:
- Gently shake the sill or tap the surrounding wall to stimulate movement without harming the animals.
- Use a low‑frequency sound device (a handheld ultrasonic emitter) to create a disturbance that prompts the bats to fly out.
Monitor the process:
- Observe the bats for several minutes to ensure they have all exited. Bats may return to the shelter if the exit remains dark.
- Once the area is clear, seal the entry point with steel wool, caulk, or mesh to prevent future incursions.
If the bats do not leave after repeated attempts, or if the colony appears large, contact a licensed wildlife control professional. Handling large numbers or pregnant females requires specialized permits and expertise.