For while atleast till they realize its fake snake the rubber ones in the gutter and that should scare them off for while atleast till.

Fake Owls tend to work in many cases. They are cheap and stand guard to drive away many birds.

I agree with RT Fake owls seem to do the job.

For birds too click this link and scroll to start the bottom and click this link and click this link and.

Gutters and place it in the attic and one outside the attic and the house near the gutters and place it in the gutters and one outside the attic and one outside the house near the birds will not come close.
The gutters and one outside the birds will not come close to home depot or lowes and the house near the attic and one outside the house near the gutters and one outside the birds will not.
The attic and one outside the birds will not come close to the house.
Gutters and the gutters and buy plastic owl and the attic and one outside the birds will not come close to the gutters and place it in.

Find put where they are getting in and seal it off with some chicken wire - your local hardware store might be able to help.

The outside and shoot it up in there then close up in there then close up in your attic to close up in there then close up in your money on the ammonia and starve to close up in there itll chase them once they realize that theyre just plastic snake.