Size – Can grow up to 10 to 12 inches long. (Tail is often longer than the head and body)
Colour – Can vary from brown to black
Roof rats are born in a nest range from 6 to 8 at one time and given the right condition, the female can produce up to 40 new rats a year. In normal circumstances, diseases and predators keep their population lower than their maximum birth rate.
Roof rats are very agile and often climb to gain entry. They tend to stick to familiar grounds as they are not explorers and rarely venture more than hundred feet from that area. They rarely die naturally and if they do you probably can find them in your attics and there will be foul smell.