Older houses are most vulnerable to rodents,
but it's possible for them to crop up in just about any neighborhood. There
are often large rodent populations in the city, but apartment owners
typically rarely see them since their landlords will typically take care of
building maintenance, including unwelcome visitors. Rodents are more
problematic to the average suburban homeowner. Here are some signs to look
for to see if rodents are living in or around your house:
Sounds:
Rats are typically active at night. You might hear such indicators as the
patter of paws, squeaks, or climbing sounds in the walls. Mice may also emit
a little whistle.
Odors:
Rats and mice lairs give off a noticeable pungent smell.
Droppings:
Look for rodent droppings near your food supplies, i.e. kitchen cupboards
or countertops. A variety of sizes may indicate an established colony with
both older and younger animals.
Gnawing:
Look for freshly gnawed wood, indicated by a paler coloring than the wood
around it.
Excited Pets:
Dogs and cats are sensitive to the sounds and smells of rodents. If your
pet frequently paws or sniffs at the wall or floor in one particular spot,
especially near kitchen cabinets or storage areas, it may be an indicator of
rats or mice.
Actual Sightings:
If you actually see a live rodent, it's a good indicator that you have a
problem. Rats are secretive and are usually only out at night, so if you see
one in the daytime, it probably means there are enough to have forced that
individual out. Assume there are at least 10 more rats in the general area
for every one you see. It is important to note that mice are naturally
active during the day, so a mouse sighting doesn't necessarily mean there is
a colony in your house.
