Once the structure has been treated and the appropriate bat control devices have been installed, all bats usually take two to four days to come out. In the colder months, bats will take longer to come out due to hibernation and low levels of activity. Why can't you go there and grab the bats? Well, you'll never be able to reach the entire colony. Even if you took them all and moved them to another area, they will always return.
It doesn't matter how far you take them. Bats are persistent and will try to return to their rest areas for up to five years. It's important to ensure that your home is bat-proof and that all necessary repairs are done to prevent bats from entering. Now that you understand the bats in the attic and how they get there, there are certain steps to take to get rid of them humanely and legally.
If you find bats hibernating during the winter, wait until spring, when the bats can fend for themselves. Like other types of pests that might find a better home elsewhere, such as rodents, flying ants and spider crickets, bats can cause problems that you'll definitely want to avoid. However, in addition to using a tube, in this case the valve is actually a flap, just think of it as a small bat door that swings to one side but not the other. You'll need to raise the temperature of the bat's nest to more than 100 degrees to effectively evacuate it.
There are a couple of important elements that can affect exactly how long it takes to remove bats from the frame. If you're worried about bats not using the flap, Animal Remover points out that bats spend the day inside, but go out every night to find insects to eat. This process is approved by Bat Conservation International and is widely accepted as the most humane method for safely treating a bat infestation. In addition to looking for cracks in the mortal, Varment Guard also points out that ventilation grilles and chimneys provide bats with a safe tunnel to your home, so you can use a screen to let air out but not let bats in.
That means continually checking your home for new places that could let bats in and making sure that the areas you've already addressed are protected. The size of the structure, the size of the bat nest, where bats sleep in the frame, the last time they got food and water, baby bats, and the climate can affect the time it takes to eliminate bats. Having dead bats inside the walls of your home is not healthy and will certainly smell over time. In fact, I recommend that you hire a professional with experience in removing bats to get rid of murci problems.
I myself trained for two years with a bat removal expert before starting my own bat removal work, and even then, I had a lot to learn.