The norway rat rattus norvegicus averages 16 inches in length includeing the animal s long tapered scaly tail that is slightly shorter than the combined length of the rat s head and body norway rats are grayish brown in color from top to.
Roof rats in washington state.
The black rat rattus rattus also known as ship rat roof rat or house rat is a common long tailed rodent of the stereotypical rat genus rattus in the subfamily murinae.
Their undersides are often white gray or black.
It is a generalist omnivore and a serious pest to farmers because it.
The roof rat also known as the black rat is an introduced non native rat and has been found along the southern atlantic and gulf coastal states from virginia to texas and throughout florida.
They also are found along the pacific coast of california washington state and oregon.
Norway rat rattus norvegicus norway rats are referred to by other names as well.
They make up for poor eyesight with keen senses of hearing smell taste and touch.
The black rat is black to light brown in colour with a lighter underside.
1 also known as the brown rat sewer rat or wharf rat and the black rat also called the roof rat.
Roof rats are long and thin rodents that have large eyes and ears a pointed nose and a scaly tail.
It likely originated in the indian subcontinent but is now found worldwide.
Old world rats include the norway rat fig.
Sewer rat street rat brown rat etc.
Adult roof rats measure 6 8 16 20 cm when combining their head and body length.
In our area the norway rat is the most common name used.
Rats constantly explore their environment and quickly detect and tend to avoid new objects including traps.
There may be both norway rats and roof rats in the same area.
Roof rats have soft and smooth fur that is typically brown with intermixed spots of black.