Northern Watersnake

Nerodia sipedon · Also known as: water snake, bandeds water snake

Marsh and pond snake. NPS lists northern water snakes in Assateague salt marshes and freshwater/brackish ponds.

Northern Watersnake (Nerodia sipedon) — Ocean City, Maryland
Photo via Wikipedia / Wikimedia Commons — Common watersnake

Quick facts

GroupSnake
Likelihood nearby★★★☆☆
Habitats Salt marsh, Freshwater ponds, Coastal bays, Assateague State Park, Assateague National Seashore
Seasons (this coast)spring, summer, fall

How to recognize them

  • Heavy-bodied; banded or blotched pattern that darkens with age; keeled scales.
  • Often basks on marsh vegetation overhanging water.

Biology notes

  • Non-venomous fish and amphibian predator; may musk if handled.
  • Frequently misidentified as cottonmouths—cottonmouths are not Assateague residents.

Where to see them around Ocean City

  • Assateague marsh edges and pond margins.
  • Kayak routes along quiet bay guts.

When to look

  • Sunny warm days from spring through fall.

Viewing tips & etiquette

  • Watch from a distance; water snakes flee when given an exit path.

Sources & further reading