Rufous-eyed brook frog

Rufous-eyed brook frog

Duellmanohyla rufioculis

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

The rufous-eyed brook frog or rufous-eyed stream frog (Duellmanohyla rufioculis), is a species of frog in the family Hylidae. It is endemic to the mountains of Costa Rica. Its natural habitats are premontane wet forests and rainforests. Tadpoles are found in pools with standing water. Habitat loss is posing some threat to the species, although the overall population is stable. Wikipedia →

10–20% of wildlife watchers report a Rufous-eyed brook frog sighting in Arenal Volcano National Park, based on 29 days of visitor records from GBIF citizen-science data.

Closest Relatives at Arenal Volcano National Park

Red-eyed Stream Frog
VU

Red-eyed Stream Frog

☀️🌙 Day & Night Amphibian

Duellmanohyla uranochroa

Insufficient data
Masked Tree Frog
LC

Masked Tree Frog

🌙 Nocturnal Amphibian

Smilisca phaeota

40–50% · Likely
Harlequin Treefrog
LC

Harlequin Treefrog

🌙 Nocturnal Amphibian

Dendropsophus ebraccatus

30–40% · Possible
Mahogany Tree Frog
LC

Mahogany Tree Frog

🌙 Nocturnal Amphibian

Tlalocohyla loquax

20–30% · Possible
Sipurio Snouted Treefrog

Sipurio Snouted Treefrog

🌙 Nocturnal Amphibian

Scinax elaeochroa

10–20% · With luck
Drab Tree Frog
LC

Drab Tree Frog

🌙 Nocturnal Amphibian

Smilisca sordida

10–20% · With luck
Eastern Masked Tree Frog
LC

Eastern Masked Tree Frog

🌙 Nocturnal Amphibian

Smilisca manisorum

5–10% · With luck
Yellow Treefrog
LC

Yellow Treefrog

🌙 Nocturnal Amphibian

Dendropsophus microcephalus

5–10% · With luck
Mexican Smilisca
LC

Mexican Smilisca

☀️🌙 Day & Night Amphibian

Smilisca baudinii

Insufficient data
Meadow Tree Frog
LC

Meadow Tree Frog

🌅 Crepuscular Amphibian

Isthmohyla pseudopuma

Insufficient data
Milk Frog

Milk Frog

🌅 Crepuscular Amphibian

Trachycephalus macrotis

Insufficient data
Shaman Fringe-limbed Tree Frog
LC Endemic

Shaman Fringe-limbed Tree Frog

☀️🌙 Day & Night Amphibian

Ecnomiohyla sukia

Insufficient data

📅 Monthly Probability

5–10
Jan
5–10
Feb
5–10
Mar
10–20
Apr
30–40
May
<5
Jun
10–20
Jul
10–20
Aug
20–30
Sep
20–30
Oct
10–20
Nov
5–10
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 Monteverde Cloud Forest Reserve 🇨🇷 Costa Rica
20–30%
2 Arenal Volcano National Park 🇨🇷 Costa Rica
10–20%
3 Tenorio Volcano National Park 🇨🇷 Costa Rica
5–10%
4 Braulio Carrillo National Park 🇨🇷 Costa Rica
Insufficient data
5 Tapantí-Macizo de la Muerte National Park 🇨🇷 Costa Rica
Insufficient data

Quick answers

What are the chances of seeing a Rufous-eyed brook frog in Arenal Volcano National Park?

About 14% of wildlife watchers report a Rufous-eyed brook frog sighting in Arenal Volcano National Park, based on 29 days of visitor records from GBIF citizen-science data.

When is the best time to see Rufous-eyed brook frog in Arenal Volcano National Park?

May has the highest sighting rate for Rufous-eyed brook frog in Arenal Volcano National Park in our monthly data.

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