Genus

Night Snakes

Hypsiglena

4 species in our catalog · found in 12 parks

KingdomAnimalia (Animals)
PhylumChordata (Chordates)
ClassSquamata
FamilyColubridae (Colubrid Snakes)
GenusHypsiglena (Night Snakes)

Species in this group

Each card shows the species at its best park — tap for the full profile

Hypsiglena jani

Daily sighting probability ~30% · Possible

Hypsiglena ochrorhynchus

Daily sighting probability Insufficient data

Hypsiglena chlorophaea

Daily sighting probability ~10% · With luck

LC Endemic

Hypsiglena slevini

Daily sighting probability Insufficient data

Daily sighting probability by month

Probability-weighted average across the group's species

<5%

Jan

<5%

Feb

~10%

Mar

~10%

Apr

~10%

May

~10%

Jun

~10%

Jul

~10%

Aug

~20%

Sep

~10%

Oct

~10%

Nov

<5%

Dec

When they're spotted

When the group's species are recorded (aggregated)

Where to see Night Snakes

Worldwide records of this group (human observations from 2019 onwards, GBIF). Pins mark our parks — tap one for the chance of seeing at least one species of the group there.

Parks Ranked

Chance of seeing at least one species of the group · number of its species present

#	Park	Country	Species	Daily sighting probability
1	Big Bend National Park	🇺🇸 United States	1	~30%
	Chihuahuan Nightsnake			~30%
2	El Vizcaíno Biosphere Reserve	🇲🇽 Mexico	2	~20%
	Coast Night Snake			Insufficient data
	Baja California Night Snake			Insufficient data
3	Bahía de Loreto National Park	🇲🇽 Mexico	2	~10%
	Coast Night Snake			Insufficient data
	Baja California Night Snake			Insufficient data
4	Cabo Pulmo National Park	🇲🇽 Mexico	1	~10%
	Coast Night Snake			Insufficient data
5	Saguaro National Park	🇺🇸 United States	1	~10%
	Desert Nightsnake			~10%
6	Death Valley National Park	🇺🇸 United States	1	~10%
	Desert Nightsnake			~10%
7	Zion National Park	🇺🇸 United States	1	~10%
	Desert Nightsnake			~10%
8	Grand Canyon National Park	🇺🇸 United States	1	~10%
	Desert Nightsnake			~10%
9	Sequoia and Kings Canyon National Parks	🇺🇸 United States	1	~10%
	Coast Night Snake			~10%
10	Guadalupe Mountains National Park	🇺🇸 United States	1	~10%
	Chihuahuan Nightsnake			Insufficient data
11	Joshua Tree National Park	🇺🇸 United States	1	~10%
	Desert Nightsnake			~10%
12	Yosemite National Park	🇺🇸 United States	1	<5%
	Coast Night Snake			Insufficient data

Night Snakes

Species in this group

Chihuahuan Nightsnake

Coast Night Snake

Desert Nightsnake

Baja California Night Snake

Daily sighting probability by month

When they're spotted

Where to see Night Snakes

Parks Ranked