Nerodia (Watersnakes) — Wallace's Line

Species in this group

LC

Nerodia erythrogaster

Daily sighting probability ~60% · Likely

LC Endemic

Nerodia fasciata

Daily sighting probability ~60% · Likely

LC Endemic

Nerodia taxispilota

Daily sighting probability ~60% · Likely

LC

Nerodia sipedon

Daily sighting probability ~50% · Likely

LC Endemic

Nerodia floridana

Daily sighting probability ~40% · Likely

LC Endemic

Nerodia clarkii

Daily sighting probability ~20% · Possible

LC

Nerodia rhombifer

Daily sighting probability <5% · Rare

Daily sighting probability by month

Probability-weighted average across the group's species

~20%

Jan

~30%

Feb

~40%

Mar

~50%

Apr

~50%

May

~50%

Jun

~50%

Jul

~50%

Aug

~40%

Sep

~30%

Oct

~30%

Nov

~30%

Dec

When they're spotted

When the group's species are recorded (aggregated)

Where to see Watersnakes

Warmer areas are where this group is recorded most often. Shaded: the known ranges of its 8 species, darker where more of them overlap (GARD, Roll et al. 2017 & Caetano et al. 2022). Our parks Our cities In captivity: 20 zoos & centres

Parks Ranked

#	Park	Country	Species	Daily sighting probability
1	Congaree National Park	🇺🇸 United States	3 of 7	~90%
	Plain-bellied Water Snake			~60%
	Brown Watersnake			~60%
	Banded Water Snake			~50%
2	Big Cypress National Preserve	🇺🇸 United States	3 of 7	~90%
	Banded Water Snake			~60%
	Brown Watersnake			~50%
	Florida Green Watersnake			~40%
3	Everglades National Park	🇺🇸 United States	4 of 7	~70%
	Banded Water Snake			~30%
	Florida Green Watersnake			~30%
	Saltmarsh Snake			~20%
	Brown Watersnake			~20%
4	Great Smoky Mountains National Park	🇺🇸 United States	1 of 7	~50%
	Common Watersnake			~50%
5	Point Pelee National Park	🇨🇦 Canada	1 of 7	~40%
	Common Watersnake			~40%
6	Shenandoah National Park	🇺🇸 United States	1 of 7	~40%
	Common Watersnake			~40%
7	Merritt Island National Wildlife Refuge	🇺🇸 United States	3 of 7	~30%
	Banded Water Snake			~20%
	Florida Green Watersnake			~10%
	Saltmarsh Snake			<5%
8	Big Bend National Park	🇺🇸 United States	1 of 7	~10%
	Plain-bellied Water Snake			~10%
9	Cumbres de Monterrey National Park	🇲🇽 Mexico	1 of 7	<5%
	Diamondback Watersnake			<5%

Cities Ranked

#	City	Country	Species	Daily sighting probability
1	Houston	🇺🇸 United States	3 of 7	~40%
	Banded Water Snake			~20%
	Plain-bellied Water Snake			~10%
	Diamondback Watersnake			~10%
2	Austin	🇺🇸 United States	2 of 7	~40%
	Plain-bellied Water Snake			~30%
	Diamondback Watersnake			~10%
3	Miami	🇺🇸 United States	4 of 7	~30%
	Brown Watersnake			~10%
	Banded Water Snake			~10%
	Florida Green Watersnake			~10%
	Saltmarsh Snake			<5%
4	Washington	🇺🇸 United States	1 of 7	~30%
	Common Watersnake			~30%
5	Dallas	🇺🇸 United States	2 of 7	~30%
	Plain-bellied Water Snake			~20%
	Diamondback Watersnake			~10%
6	Baltimore	🇺🇸 United States	1 of 7	~20%
	Common Watersnake			~20%
7	San Antonio	🇺🇸 United States	2 of 7	~20%
	Diamondback Watersnake			~20%
	Plain-bellied Water Snake			~10%
8	Orlando	🇺🇸 United States	2 of 7	~20%
	Banded Water Snake			~20%
	Brown Watersnake			~10%
9	Philadelphia	🇺🇸 United States	1 of 7	~10%
	Common Watersnake			~10%
10	Denver	🇺🇸 United States	1 of 7	~10%
	Common Watersnake			~10%
11	Detroit	🇺🇸 United States	1 of 7	~10%
	Common Watersnake			~10%
12	Monterrey	🇲🇽 México	1 of 7	~10%
	Diamondback Watersnake			~10%
13	Chicago	🇺🇸 United States	1 of 7	~10%
	Common Watersnake			~10%
14	Boston	🇺🇸 United States	1 of 7	~10%
	Common Watersnake			~10%
15	Toronto	🇨🇦 Canada	1 of 7	<5%
	Common Watersnake			<5%
16	New York City	🇺🇸 United States	1 of 7	<5%
	Common Watersnake			<5%

Zoos & Centres Where Found

#	Zoo / Centre	Country
1	Ecomuseum Zoo	🇨🇦 Canada	In captivity
2	Zoo Miami	🇺🇸 United States	In captivity
3	Columbus Zoo and Aquarium	🇺🇸 United States	In captivity
4	Dauphin Island Audubon Bird Sanctuary	🇺🇸 United States	In captivity
5	Dickerson Park Zoo	🇺🇸 United States	In captivity
6	San Antonio Zoo	🇺🇸 United States	In captivity
7	Cameron Park Zoo	🇺🇸 United States	In captivity
8	Philadelphia Zoo	🇺🇸 United States	In captivity
9	London Zoo	🇬🇧 United Kingdom	In captivity
10	Leningrad Zoo	🇷🇺 Russia	In captivity
11	Trailside Museum & Zoo	🇺🇸 United States	In captivity
12	Gran Acuario de Mazatlán "Mar de Cortés"	🇲🇽 Mexico	In captivity
13	Oklahoma Aquarium	🇺🇸 United States	In captivity
14	Ripley's Aquarium of the Smokies	🇺🇸 United States	In captivity
15	North Carolina Aquarium on Roanoke Island	🇺🇸 United States	In captivity
16	Bird Kingdom	🇨🇦 Canada	In captivity
17	Schramm Education Center	🇺🇸 United States	In captivity
18	Belle Isle Nature Center	🇨🇦 Canada	In captivity
19	Edisto Island Serpentarium	🇺🇸 United States	In captivity
20	Museum of Life and Science	🇺🇸 United States	In captivity

Show all 20 Show fewer

Watersnakes

Species in this group

Plain-bellied Water Snake

Banded Water Snake

Brown Watersnake

Common Watersnake

Florida Green Watersnake

Saltmarsh Snake

Diamondback Watersnake

Daily sighting probability by month

When they're spotted

Where to see Watersnakes

Parks Ranked

Cities Ranked

Zoos & Centres Where Found