Keep in mind that the best way to combat pests and wild animals is to prevent them from nesting in gutters, mosquito nets with a mesh cover, gutter protectors with a brush for bottles, gutter protectors with holes or slits, gutter protectors with sponge or foam. Clogged gutters that accumulate debris and stagnant water are an immediate problem when it comes to insect control. Even if the gutters are not obstructed, the exposed gutters encourage wildlife to build nests and access the attic by destroying the roof. Below is a list of common pests that live in New Jersey and Pennsylvania and are attracted to gutters.
Elsewhere in the country, pests, including snakes, also take refuge in open gutters that are not cleaned or covered regularly.