Nothing but their presence in the area and access. In winter rodent pressure increases everywhere. If they are in your home no mater where you see them thy spend most time in the attic. To get rid of them use rat sized snap traps placed there near access hatch and check daily. Bait with peanut butter OR slightly undercooked bacon it sounds funny but they cant resist it I got paid to get rid of them for about 40 yrs
rats
the causes of the plague was the fleas on the rats they bit the rats and then when the rats died they moved on to bite the humans
Rats may be attracted to your home due to the availability of food, water, and shelter. Common attractants include garbage, pet food left outside, cluttered areas, and easy access points such as gaps or holes in walls. Making your home less appealing to rats by removing these attractants can help deter them.
No, they can sometimes prevent them!
no
The two main causes were the rats and the fleas brought from Asia.
Rats can travel up to a mile to find their way back home.
Why does mrs frisby not explore the rats home
White House in D.C.
White House in D.C.
burrows or nests
Rat digs in the ground to make home.