Norway Rat in Montgomery Co., Maryland (4/23/2017). (c) Wendy R Fredericks, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 530532 - Psn: 35)

Norway Rat in Montgomery Co., Maryland (4/23/2017). (c) Wendy R Fredericks, some rights reserved (CC BY-NC).

View Record Details Photo by Wendy R. Fredericks MBP List

A Norway Rat in Baltimore Co., Maryland (3/3/2016).

View Record Details Photo by Joyce Stevens MBP List

Norway Rat in Baltimore City, Maryland (4/11/2021). (c) Alina Martin, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 910667 - Psn: 45)

Norway Rat in Baltimore City, Maryland (4/11/2021). (c) Alina Martin, some rights reserved (CC BY).

View Record Details Photo by Alina Martin via iNaturalist MBP List

Norway Rat in Baltimore City, Maryland (12/6/2022). (c) Molly Cohn, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 699179 - Psn: 65)

Norway Rat in Baltimore City, Maryland (12/6/2022). (c) Molly Cohn, some rights reserved (CC BY-NC).

View Record Details Photo by Molly Cohn via iNaturalist MBP List

A Norway Rat found dead in Baltimore Co., Maryland (9/11/2014).

Photo by Jane Marlow MBP List

Baby Norway Rats in Wicomico Co., Maryland (9/17/2022). (c) apb24, some rights reserved (<a rel='license' href='https://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 647909 - Psn: 125)

Baby Norway Rats in Wicomico Co., Maryland (9/17/2022). (c) apb24, some rights reserved (CC BY-NC).

View Record Details Photo by apb24 via iNaturalist MBP List

Norway Rat in Howard Co., Maryland (2/20/2017).

View Record Details Photo by Sue Muller MBP List

Map Snapshot

112 Records

GA AL WA FR CL MO HO BA BC HA CE PG AA CV CH SM KE QA CN TA DO WI SO WO

Relationships

Host to the flea Nosopsyllus fasciatus, which was introduced to North America along with this species (Eckerlin, 2011).

Seasonality Summary

No filters. Click here to explore and apply filters.

Resources

View at iNaturalist Search Google Images Search MBP Facebook posts

Citations

No citations linked for this taxon yet.

MBP marks as "Invasive" any taxon listed in the Maryland Invasive Species Council (MISC) list of Invasive Species of Concern in Maryland. You can read their criteria and review the lists here: https://mdinvasives.org/species-of-concern/. Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

Norway Rat in Montgomery Co., Maryland (4/23/2017). (c) Wendy R Fredericks, some rights reserved (CC BY-NC). View Record Details Media by Wendy R. Fredericks.

A Norway Rat in Baltimore Co., Maryland (3/3/2016). View Record Details Media by Joyce Stevens.

Norway Rat in Baltimore City, Maryland (4/11/2021). (c) Alina Martin, some rights reserved (CC BY). View Record Details Media by Alina Martin via iNaturalist.

Norway Rat in Baltimore City, Maryland (12/6/2022). (c) Molly Cohn, some rights reserved (CC BY-NC). View Record Details Media by Molly Cohn via iNaturalist.

A Norway Rat found dead in Baltimore Co., Maryland (9/11/2014). Media by Jane Marlow.

Baby Norway Rats in Wicomico Co., Maryland (9/17/2022). (c) apb24, some rights reserved (CC BY-NC). View Record Details Media by apb24 via iNaturalist.

Norway Rat in Howard Co., Maryland (2/20/2017). View Record Details Media by Sue Muller.