As an adult the average Rat can weigh between 12 -16 oz, with a body length of 15-20 cm long. The nose is blunt with small ears, and small eyes. The fur is shaggy and coarse with variation in colours. The tail is shorter than the head and body combined, and is quite scaly.
Rats Inspection The droppings are 6mm to 12mm in length and are of a capsule shape, with blunt ends. They are usually a shiny black, but may vary according to their diets.
Rats will leave a hind foot track of about 20-25 mm where a mouse’s track measures 12 mm or less. Rats will also drag their tails, leaving a mark between their feet tracks. Unscented baby powder or flour, lightly sprinkled can help you determine tracks and their runways as they cross suspected areas.
Gnawing holes from rats are about 50 mm or more in diameter. They have rough edges and they prefer to gnaw on wood, but can also damage electrical wiring. Rat burrows can be found along foundations, or beneath rubbish and shrubbery. If the burrow is active it usually clear of vegetation. Rat runways are smooth and well packed. Indoors, these runways are free of dust and dirt.
Brown Rats carry many nasty diseases which they can spread to humans, normally through their urine, including; Leptospirosis or Weil’s disease, Salmonella, Listeria, Toxoplasma gondii and Hantavirus. Brown Rats can inflict a great amount of structural damage.