There is no device no repellent that will make them leave.
Birds in attic repellent.
Simply fill a bowl with birdseed and place it in an open spot inside the attic.
Here s the problem with repellents in general.
Birds in the attic is a very common problem that we see all thru the united states with bird habitat getting more scarce everyday birds are starting g to find alternative nesting sites which is usually in a bathroom vent or in a home s attic space.
Wait for the birds to come to the bowl and finish the seed.
Once a wild animal lives in your attic and has a nest of babies there that s it.
That s the only option for survival.
An attic is a big dry safe place to live in and certain species of birds will enter an attic to roost and nest.
Birds indoors are pests but they are very easy to handle in a humane way.
Now refill the bowl with more seed but place the bowl inside of a cage trap.
If it is only one or two a small trap may suffice but for larger colonies you may need to find a specialist.
They will endure anything rather than to leave and die outside without shelter.
Pigeons barn swallows starlings house finches house sparrows are all candidates for birds in a house or attic.
It will find the open window and fly out on its.
Play loud music on the radio placed in the attic to scare the bird out of the attic.