Rat nest– There is no particular area for rats to make the nest, and they do not search for any particular material to build their nest. They build it from your house’s existing material, destroying your property like furniture, cardboard, and papers. Usually, their nest is found in isolated dark places. You can also notice the holes and bite marks on the walls for their presence.

Rat droppings– It is easy to identify rat dropping; it is of dark brown-black color. Their urines are yellow and have a very pungent smell. The rat droppings not only indicate their presence but also warns you to beware of the diseases they can cause.

Rats gnaw marks– In searching for food and shelter, rats have a habit of scratching and inspecting every object because they have weak eyesight. These marks show their persistent effort to infest your house. The gnaw marks also tell you about the age and size of the rats. The bigger the scratch marks, the bigger the size of the rat will be.

Rat grease marks– Rats are grease animals, and often their fur is covered in the grease. While making their way into your home or searching for food, they blindly come in contact with the random object and leave the grease marks there. You can recognize their grease marks by their dark yellow color. It often shows the path of their nest.

Foul odors of rats– As mentioned above, rats thrive on the dirt and like to stay unhygienic. Because of their filthy characteristics, there is always a distinct foul odor that indicates their presence. Check in the cupboards and attics; if you smell anything pungent, be ready to face some unwelcome guests. In this case, also rely on the nose and behavior of your pets.

Noises– At night, while there is silence in the house, if you hear a scratching noise, it is a tell-tale sign of the rats. The rats produce these scratching noises while they are scurrying to find food. Once you are sure of the scratching noise, go for further signs and take significant measures to get rid of rats.