It s a really great idea in theory.
Leaving lights on in attic will deter bats.
Bats are also nocturnal because they are blind.
This can effectively repel all the residing bats at your place.
The main reason why bats will avoid light is predator avoidance.
Take the whole bright lights and loud noises theory as an example.
So some of these remedies such as moth balls chemicals ultrasonic sound and rapidly blinking lights simply won t be enough to convince the bats to leave their safe and comfortable nesting space.
You need to light the room at daytime when the bats are sleeping.
Use your porch lights to deter the bats.
Some of them do fly as much as a 50 kilometer distance in search of food.
It would seem to make sense that if you were using this it would keep them away.
If it gets colder than that the bats in the attic will migrate out allowing you to seal up cracks and other entry points once they leave for the season.
When the lights do not deter them for about a week you could use some additional lights to face your.
Bats favor dark quiet hideouts and have an aversion to lots of light and commotion.
If you live in an area with mild temperatures throughout the year the bats will stay year round.
They prefer to be away from light so shining a bright light into the night would keep them away as well.
For a two pronged approach you might also invest in a white noise machine and leave it running overnight to double your chances of scaring them off.
Try leaving a light on in the attic or another area you think bats might be inhabiting.
They are also affected by any bright light including street lights.
As mentioned earlier bats are not able to see clearly in light and they will be picked on easily.
Bats will hibernate in the winter if the temperature stays at around 35 to 40 f.
After this method you will see no more bats coming in your way.
Bats are nocturnal animals therefore not liking the disruption of light or sound.
If your attic has an electrical outlet all the better.
Bright lights or strobe lights.
If you were to go into a dark room where bats were roosting such as in the attic and then turn the lights on there s a good chance that all the bats in there would fly off into the sunset never to be seen again.
These all seem like perfectly viable options and to some degree they are.
However the daylight is not the only light which affects bats.
To aid the survival and maintenance of bats the bat conservation trust has recommended that buildings used by bats as roost must have its light switched off during the perceived movement of the bats and at their peak activity time frame.
Sealing off the attic.
Turn your porch light on.
