Genus

Rusty-headed Snakes

Amastridium

2 species in our catalog · found in 7 parks

KingdomAnimalia (Animals)
PhylumChordata (Chordates)
ClassSquamata
FamilyColubridae (Colubrid Snakes)
GenusAmastridium (Rusty-headed Snakes)

Species in this group

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

Amastridium veliferum

Daily sighting probability ~10% · With luck

Amastridium sapperi

Daily sighting probability Insufficient data

Daily sighting probability by month

Probability-weighted average across the group's species

<5%

Jan

<5%

Feb

<5%

Mar

<5%

Apr

<5%

May

<5%

Jun

<5%

Jul

<5%

Aug

<5%

Sep

<5%

Oct

~10%

Nov

<5%

Dec

When they're spotted

When the group's species are recorded (aggregated)

Where to see Rusty-headed 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	Arenal Volcano National Park	🇨🇷 Costa Rica	1	~10%
	Rustyhead Snake			~10%
2	Cerro Azul Meámbar National Park	🇭🇳 Honduras	1	~10%
	Sapper's Rustyhead Snake			Insufficient data
3	Gandoca-Manzanillo Wildlife Refuge	🇨🇷 Costa Rica	1	~10%
	Rustyhead Snake			Insufficient data
4	Montes Azules Biosphere Reserve	🇲🇽 Mexico	1	<5%
	Sapper's Rustyhead Snake			Insufficient data
5	Cañón del Sumidero National Park	🇲🇽 Mexico	1	<5%
	Sapper's Rustyhead Snake			Insufficient data
6	Braulio Carrillo National Park	🇨🇷 Costa Rica	1	<5%
	Rustyhead Snake			Insufficient data
7	Soberanía National Park	🇵🇦 Panama	1	<5%
	Rustyhead Snake			Insufficient data