Forrer's Grass Frog
Forrer's Grass Frog

Forrer's Grass Frog

Lithobates forreri

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
<5% · Rare
overall probability at Arenal Volcano National Park
5 Verified records at Arenal Volcano 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 →

<5% of wildlife watchers report a Forrer's Grass Frog sighting in Arenal Volcano National Park, based on 5 days of visitor records from GBIF citizen-science data.

Closest Relatives at Arenal Volcano National Park

Warszewitsch's Frog

Warszewitsch's Frog

🌅 Crepuscular Amphibian

Lithobates warszewitschii

40–50% · Likely
Vaillant's Frog
LC

Vaillant's Frog

🌙 Nocturnal Amphibian

Lithobates vaillanti

10–20% · With luck
Peralta Frog
LC

Peralta Frog

🌙 Nocturnal Amphibian

Lithobates taylori

5–10% · With luck
Rana Montanera

Rana Montanera

☀️ Diurnal Amphibian

Lithobates vibicarius

Insufficient data
Red-eyed Treefrog
LC

Red-eyed Treefrog

🌙 Nocturnal Amphibian

Agalychnis callidryas

60–70% · Likely
Strawberry Poison-dart Frog
LC

Strawberry Poison-dart Frog

☀️ Diurnal Amphibian

Oophaga pumilio

40–50% · Likely
Masked Tree Frog
LC

Masked Tree Frog

🌙 Nocturnal Amphibian

Smilisca phaeota

40–50% · Likely
Giant Marine Toad
LC

Giant Marine Toad

🌙 Nocturnal Amphibian

Rhinella horribilis

30–40% · Possible
Harlequin Treefrog
LC

Harlequin Treefrog

🌙 Nocturnal Amphibian

Dendropsophus ebraccatus

30–40% · Possible
Savage's Thin-toed Frog
LC

Savage's Thin-toed Frog

🌙 Nocturnal Amphibian

Leptodactylus savagei

30–40% · Possible
Mahogany Tree Frog
LC

Mahogany Tree Frog

🌙 Nocturnal Amphibian

Tlalocohyla loquax

20–30% · Possible
Emerald Glass Frog
LC

Emerald Glass Frog

🌙 Nocturnal Amphibian

Espadarana prosoblepon

20–30% · Possible

📅 Monthly Probability

<5
Jan
5–10
Feb
<5
Mar
5–10
Apr
<5
May
5–10
Jun
<5
Jul
10–20
Aug
<5
Sep
<5
Oct
5–10
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 Arenal Volcano National Park?

About 4% of wildlife watchers report a Forrer's Grass Frog sighting in Arenal Volcano National Park, based on 5 days of visitor records from GBIF citizen-science data.

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

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

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