Conflicts: Birds can contaminate your home with their messy nests as well as droppings. They also consume any fruits/grains that grow around your home. In some cases, birds will compete with one another to set up a nest in your home.
Safety concerns: Birds can transmit diseases to humans. Some of these diseases include aspergillosis, histoplasmosis, psittacosis, and salmonellosis.
Reproduction: Female birds can lay between 3-9 eggs, and can nest up to two times per year.