Yes
Not if you want paint splatters in your attic.
no
A colony of Bats
You should proof the attic to exclude. There are all types of readily available nets, screens etc to keep them out.
www.batsinthehouse.com
A colony of bats.
Yes, bats are very social and will nest together in a cave, attic, belfry, or loft of a barn.
A group of bats is called a colony.
Starting a bull ant colony is too dangerous. I would never recommend doing that. There poisonous, pesty, dangerous. Only do it when you dont have a dog lol. Like i said too dangerous.
Yes bats do fight i have seen it myself in my attic it is so weird the noise that they make really it was amazing to wacth!
Contact a professional wildlife removal service to safely and humanely remove the bats from the attic. It is important to exclude them through methods like one-way doors to prevent them from returning. Seal off entry points and ensure the attic is clean to deter them from coming back.
Bats look for warm, protected places to roost. An attic with a small opening is perfect for the bats. However, people would generally advise against allowing bats to live in the attic. One, they poop, like most mammals, which creates a disgusting and insanitary mess. Two, there is a chance they could spread disease to humans (although the odds are low). Although I wouldn't recommend letting bats live in your attic, they are awesome animals and I would highly recommend providing a bathhouse for them. If the hang from the underside of your roof, outside of your house, that's fine too.