Pest Guides

Black Rat / Roof Rat

Rattus rattus


Image of Black Rat / Roof Rat [Rattus rattus] | Ehrlich Pest Control
  • 6 3/8" – 9 7/16" in length, with a tail longer than the head and body.
  • 150 – 200g in weight.
  • Pointed nose, large ears and a slender body when compared to the Brown Rat (Rattus norvegicus).


  • 5 – 10 young per litter; 3 – 6 litters a year.
  • Gestation period of about 3 weeks.
  • 12 – 16 weeks from birth to sexual maturity.


  • Quite Rare. Appearance confined mainly to ports.
  • Often climbs, agile, rarely burrowing and rarely outdoors in Northern America.
  • Preferred food is moist fruits.
  • Will eat around 15g of food a day and drink 15ml.

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