Forrer's Grass Frog
Forrer's Grass Frog

Forrer's Grass Frog

Lithobates forreri

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
10–20% · With luck
overall probability at Palo Verde National Park
10 Verified records at Palo Verde National Park
August Best month highest sighting rate
🌙 Nocturnal When it's active during nighttime hours (6pm–6am)

Forrer's grass frog or Forrer's leopard frog (Lithobates forreri) is a species of frog in the family Ranidae found in Mexico and Central America through Guatemala, El Salvador, Honduras, and Nicaragua to Costa Rica. It is a widespread and common frog found in lowland and seasonal tropical forests. It can also adapt to man-made habitats such as flooded agricultural lands and other water content systems. Reproduction requires permanent pools and lagoons. Wikipedia →

10–20% of wildlife watchers report a Forrer's Grass Frog sighting in Palo Verde National Park, based on 10 days of visitor records from GBIF citizen-science data.

Closest Relatives at Palo Verde National Park

Vaillant's Frog
LC

Vaillant's Frog

🌙 Nocturnal Amphibian

Lithobates vaillanti

Insufficient data
Stauffer's Tree Frog
LC

Stauffer's Tree Frog

🌙 Nocturnal Amphibian

Scinax staufferi

40–50% · Likely
Mexican Smilisca
LC

Mexican Smilisca

☀️🌙 Day & Night Amphibian

Smilisca baudinii

40–50% · Likely
Giant Marine Toad
LC

Giant Marine Toad

🌙 Nocturnal Amphibian

Rhinella horribilis

40–50% · Likely
Yellow Treefrog
LC

Yellow Treefrog

🌙 Nocturnal Amphibian

Dendropsophus microcephalus

30–40% · Possible
Milk Frog

Milk Frog

🌅 Crepuscular Amphibian

Trachycephalus macrotis

30–40% · Possible
Sheep Frog
LC

Sheep Frog

🌙 Nocturnal Amphibian

Hypopachus variolosus

20–30% · Possible
Yellow Toad
LC

Yellow Toad

🌙 Nocturnal Amphibian

Incilius luetkenii

20–30% · Possible
Guayaquil Dwarf Frog
LC

Guayaquil Dwarf Frog

🌅 Crepuscular Amphibian

Engystomops pustulosus

20–30% · Possible
Mexican Burrowing Toad
LC

Mexican Burrowing Toad

☀️🌙 Day & Night Amphibian

Rhinophrynus dorsalis

20–30% · Possible
Mexican White-lipped Frog
LC

Mexican White-lipped Frog

🌙 Nocturnal Amphibian

Leptodactylus fragilis

10–20% · With luck
Black Jungle-Frog
LC

Black Jungle-Frog

🌅 Crepuscular Amphibian

Leptodactylus melanonotus

10–20% · With luck

📅 Monthly Probability

<5
Jan
<5
Feb
30–40
Mar
<5
Apr
<5
May
20–30
Jun
<5
Jul
40–50
Aug
5–10
Sep
30–40
Oct
<5
Nov
<5
Dec

🌙 When They're Spotted

Most active during nighttime hours (6pm–6am) · across all parks (global)

🌙Nocturnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Santa Rosa National Park 🇨🇷 Costa Rica
20–30%
2 Palo Verde National Park 🇨🇷 Costa Rica
10–20%
3 Monteverde Cloud Forest Reserve 🇨🇷 Costa Rica
10–20%
4 Tenorio Volcano National Park 🇨🇷 Costa Rica
10–20%
5 Arenal Volcano National Park 🇨🇷 Costa Rica
<5%
6 Celaque National Park 🇭🇳 Honduras
Insufficient data
7 Las Baulas Marine National Park 🇨🇷 Costa Rica
Insufficient data
8 Carara National Park 🇨🇷 Costa Rica
Insufficient data

Quick answers

What are the chances of seeing a Forrer's Grass Frog in Palo Verde National Park?

About 18% of wildlife watchers report a Forrer's Grass Frog sighting in Palo Verde National Park, based on 10 days of visitor records from GBIF citizen-science data.

When is the best time to see Forrer's Grass Frog in Palo Verde National Park?

August has the highest sighting rate for Forrer's Grass Frog in Palo Verde National Park in our monthly data.

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