The Black Rat, also called the roof rat or ship rat, is a non-native species of Asian origin that has spread worldwide through commerce and has caused the extinction of numerous island species of birds, reptiles, and mammals. It is a superior climber compared to the Norway rat, readily inhabiting the upper stories of buildings and invading tree nests. Black rats were the primary carriers of fleas that spread Bubonic Plague in medieval Europe.
Best time to see a Black Rat
The best time to see a Black Rat is March–September, when about 62% of U.S. sightings happen, based on 10,760 research-grade iNaturalist observations.
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