>Environmental Health >Rodent Control >Rodents >Rats >Roof Rats

A typical roof rat is between 13 to 18 inches long from nose to tail. It is commonly known as the black rat, but is often dark brown in color. Unlike other rats, their tails are longer than the length of their bodies and they have large ears.
Roof rats will nest in trees, woodpiles, garbage and plants, but they generally like inside high places, like attics. They sometimes co-exist with sewer rats, though they like to be up high. They are good climbers and only need a hole the size of a quarter to gain entry.
Roof Rats can have up to 8 litters per year each bearing 6-8 rats. They become sexually active 2-3 months after birth.
Roof Rats are most active one hour after sunset and one hour before dawn. They primarily consume fruits and nuts, although they will eat anything. They tend to hoard food for consuming later. They are known for hollowing out citrus fruit in trees or on the ground.