This is usually enough to discourage landing. Vegetable gardens and fruit trees are another favorite spot of our wild neighbors. While birds will get rid of unwanted insect pests, they also love brand new foliage and newly ripened fruits and vegetables. Scarecrows, plastic owls, or plastic snakes sometimes scare the birds away. To increase their effectiveness, move these devices periodically so birds don't get used to them in the same location.
Birds sometimes get inside the house.
Remember, birds will most often fly to the highest location they can reach and will fly toward light in source of an escape route. You can help them find the way out by closing all the curtains and doors except for the opening you'd like the bird to use as an exit. Birds will quickly tire after flying around a room, so let them rest where they land before gently shooing them toward the opening. If the bird lands on the floor, you may be able to toss a pillow case over the bird and gently scoop it up for release outside. If injury is not serious, the bird may recover from the shock in a few minutes.