Snakes
Diamondback Watersnake
Nerodia rhombifer
Across the regions where it's common, the Diamondback Watersnake peaks from March to July.
Shows up in 10 ecoregions and 9 states
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Snakes
Diamondback Watersnake
Nerodia rhombifer
Description
Nerodia rhombifer, commonly known as the diamondback water snake, is a species of nonvenomous natricine colubrid endemic to the central United States and northern Mexico. The diamondback water snake is predominantly brown, dark brown, or dark olive green in color, with a black net-like pattern along the back, with each spot being vaguely diamond-shaped.Wikipedia ↗
Habitat
The diamondback water snake is one of the most common species of snake within its range. The diamondback water snake is found in the central United States, predominantly along the Mississippi River valley, but its range extends beyond that.Wikipedia ↗
When it's active
Adults breed in the spring, and gravid females give birth in the late summer or early fall.Wikipedia ↗

Often mistaken for
When and where it's active
Each row is its own calendar, counted from records in that area. Seasons shift by place.
Ecoregions
States
About the Diamondback Watersnake
When is the Diamondback Watersnake most active?
Across the regions where it's common, the Diamondback Watersnake peaks from March to July.
Where does the Diamondback Watersnake live?
It has enough records to show in 10 ecoregions and 9 states, including Arkansas, Illinois, Kansas, and Louisiana.
What does the Diamondback Watersnake look like?
It's often confused with the Northern Cottonmouth and Florida Cottonmouth.