Excerpt from For The Birds Joanne Quaglia
5 Birds enjoy a day at the spa to relax and refresh as much as you do. Consider adding a birdbath to your backyard to attract
birds. Birds will love having a source of clean, fresh water to drink and a place where they can clean up after a long flight.
Always keep the birdbath clean and replace the water often to avoid attracting mosquitoes that can carry diseases.
All of these are advantages of birdbaths, EXCEPT that
A)
they keep birds clean.
B)
they help attract birds.
they can harbor insects.
D)
they provide water to drink.