Loud music, noisy air conditioning units, and wind chimes can keep birds away. Additionally, using insecticides in your yard could kill off the insects they eat.
Birds want a shallow puddle to wet their beak and dip their claws. A deep bath could cause young, wounded, or ill birds to drown without webbed feet to stand in water.
Ideally, the water in your birdbath should be 1-3 inches. If your bird bath is naturally too deep, place rocks that aren't too smooth without gaps for perching.
Use a dark-colored birdbath made of plastic or resin, as they are more frost-resistant and absorb heat from sunlight. Add a ping-pong ball to the bath to prevent it from freezing.
Birds like to have a perch nearby to land, preen, and check their plumage after bathing. This feature will instantly make your birdbath a lot more attractive to birds.
If your birdbath needs somewhere for the birds to preen, move it to an area of your yard with tree branches nearby. If you have none, create an artificial perch.
It is best to place the birdbath in an area that makes the birds feel protected. You can do this by putting one side of the bath near a shed, tree, or even a house.