Bats can be advantageous to the environment in many ways. They help control the insect population, specifically mosquitoes. When you consider that mosquitoes are responsible for a number of dangerous diseases, bats quickly seem to become unsung heroes.
Unfortunately, there is more to the story. Bats can also spread harmful diseases such as rabies and histoplasmosis (a fungal disease associated with their droppings.) They can also move into open spaces in your home’s attic or other sheltered spaces in which they can spend the day in darkness.
Depending on where you live, beavers may become a nuisance. Oakland and Macomb Counties are fortunate to have many beautiful lakes and lakefront property. In some areas beavers choose to build their homes (dams or lodges) which can interrupt the flow and filtration of water. They can also cut down large trees to use as building materials.
Beavers may be admirable construction engineers but their projects can be a nuisance to waterfront property owners.
As beautiful as they may be, birds are also a diverse source of potential problems, from woodpeckers who decide to use your home or outbuildings as a place to burrow for insects, to starlings and pigeons who can by sheer numbers do damage to property with their waste.