Pest Guides

Black Rat

Rattus rattus


Black Rat

  • The Black Rat is 16 – 24 cm in length, with a tail longer than its head and body.
  • Black Rats are typically 150 – 200g in weight.
  • The characteristics of Brown Rats are a pointed nose, large ears and a slender body when compared to the Brown Rat (Rattus norvegicus).


  • The Black Rat has 5 – 10 young per litter; 3 – 6 litters a year.
  • Their Gestation period is about 3 weeks.
  • Black Rats reach sexual maturity in 12 – 16 weeks from birth.


  • Their appearance of black rats are mainly confined mainly to ports, so it is rare that one will find them in Uganda.
  • Black Rats often climb, are very agile, rarely burrow and are rarely found outdoors.
  • The Preferred foods of Black Rats are moist fruits.
  • Black Rats will eat around 15g of food a day and drink 15ml of liquids.