Long-billed Gnatwren

Ramphocaenus melanurus

Silhouette: Sheatherius · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered

KingdomAnimalia (Animals)
PhylumChordata (Chordates)
ClassAves (Birds)
OrderPasseriformes (Perching Birds)
FamilyPolioptilidae (Gnatcatchers and Gnatwrens)
GenusRamphocaenus (Long-billed Gnatwrens)
SpeciesRamphocaenus melanurus (Long-billed Gnatwren)

Daily sighting probability Insufficient data

at Poás Volcano National Park

3 Verified sightings at Poás Volcano National Park From 2019 to 2026

13,969 Verified sightings across all 60 parks From 2019 to 2026

☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Long-billed Gnatwren

The trilling gnatwren (Ramphocaenus melanurus), formerly long-billed gnatwren, is a very small bird in the gnatcatcher family. It found from southeast Mexico south to Ecuador and Amazonia. The trilling gnatwren was described by the French ornithologist Louis Pierre Vieillot in 1819 from a specimen collected in Brazil. He coined the binomial name Ramphocaenus melanurus. The genus name Ramphocaenus means "unusual beak", from the Ancient Greek rhamphos (ῥάµϕος, "beak") and cænos (καινός, "strange"). The specific epithet combines the Ancient Greek melas "black" and oura "tail". A molecular phylogenetic study published in 2018 found that two subspecies of Ramphocaenus melanurus formed a separate clade. The subspecies were split off to become the chattering gnatwren and the English name of this species was changed from "long-billed gnatwren" to "trilling gnatwren".

Thirteen subspecies are recognised: R. m. rufiventris (Bonaparte, 1838) – south Mexico to west Ecuador R. m. ardeleo Van Tyne & Trautman, 1941 – Yucatán Peninsula (southeast Mexico) and north Guatemala R. m. panamensis Phillips, AR, 1991 – central and east Panama

R. m. sanctaemarthae Sclater, PL, 1862 – north... Wikipedia →

Closest Relatives at Poás Volcano National Park

Chlorospingus pileatus

Daily sighting probability ~70% · Very likely

Diglossa plumbea

Daily sighting probability ~70% · Very likely

Elaenia frantzii

Daily sighting probability ~70% · Very likely

Henicorhina leucophrys

Daily sighting probability ~60% · Likely

Zonotrichia capensis

Daily sighting probability ~60% · Likely

Phainoptila melanoxantha

Daily sighting probability ~60% · Likely

Turdus plebejus

Daily sighting probability ~60% · Likely

Cardellina pusilla

Daily sighting probability ~50% · Likely

Atlapetes tibialis

Daily sighting probability ~50% · Likely

Catharus gracilirostris

Daily sighting probability ~50% · Likely

Turdus nigrescens

Daily sighting probability ~50% · Likely

Chlorospingus flavopectus

Daily sighting probability ~50% · Likely

See all 12 relatives Show fewer

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

#	Park	Country	Daily sighting probability
1	Cockscomb Basin Wildlife Sanctuary	🇧🇿 Belize	~40%
2	Carara National Park	🇨🇷 Costa Rica	~30%
3	El Triunfo	🇲🇽 Mexico	~30%
4	Tikal National Park	🇬🇹 Guatemala	~20%
5	Cahuita National Park	🇨🇷 Costa Rica	~20%
6	Pico Bonito National Park	🇭🇳 Honduras	~20%
7	Parque Natural Metropolitano	🇵🇦 Panama	~20%
8	Santa Rosa National Park	🇨🇷 Costa Rica	~20%
9	Montes Azules Biosphere Reserve	🇲🇽 Mexico	~20%
10	Chagres National Park	🇵🇦 Panama	~20%
11	Biotopo Cerro Cahuí	🇬🇹 Guatemala	~20%
12	Rincón de la Vieja National Park	🇨🇷 Costa Rica	~20%
13	Soberanía National Park	🇵🇦 Panama	~20%
14	Arenal Volcano National Park	🇨🇷 Costa Rica	~20%
15	Bastimentos Island National Marine Park	🇵🇦 Panama	~20%
16	San Lorenzo Protected Forest	🇵🇦 Panama	~10%
17	Henri Pittier National Park	🇻🇪 Venezuela	~10%
18	Calakmul Biosphere Reserve	🇲🇽 Mexico	~10%
19	Corcovado National Park	🇨🇷 Costa Rica	~10%
20	Tayrona National Natural Park	🇨🇴 Colombia	~10%
21	Sian Ka'an Biosphere Reserve	🇲🇽 Mexico	~10%
22	Sierra de la Macarena National Park	🇨🇴 Colombia	~10%
23	Canaima National Park	🇻🇪 Venezuela	~10%
24	Ostional Wildlife Refuge	🇨🇷 Costa Rica	~10%
25	Brownsberg Nature Park	🇸🇷 Suriname	~10%
26	Marino Ballena National Park	🇨🇷 Costa Rica	~10%
27	La Amistad International Park (Panama)	🇵🇦 Panama	~10%
28	Cabo Blanco Absolute Nature Reserve	🇨🇷 Costa Rica	~10%
29	Braulio Carrillo National Park	🇨🇷 Costa Rica	~10%
30	Manuel Antonio National Park	🇨🇷 Costa Rica	~10%
31	Cuyabeno Wildlife Reserve	🇪🇨 Ecuador	~10%
32	Gandoca-Manzanillo Wildlife Refuge	🇨🇷 Costa Rica	~10%
33	Amacayacu National Natural Park	🇨🇴 Colombia	~10%
34	Piedras Blancas National Park	🇨🇷 Costa Rica	~10%
35	Cerro Azul Meámbar National Park	🇭🇳 Honduras	~10%
36	Machalilla National Park	🇪🇨 Ecuador	~10%
37	Yasuní National Park	🇪🇨 Ecuador	<5%
38	Tenorio Volcano National Park	🇨🇷 Costa Rica	<5%
39	Farallones de Cali National Natural Park	🇨🇴 Colombia	<5%
40	Darién National Park	🇵🇦 Panama	<5%
41	Cusuco National Park	🇭🇳 Honduras	<5%
42	Tapantí-Macizo de la Muerte National Park	🇨🇷 Costa Rica	<5%
43	Tortuguero National Park	🇨🇷 Costa Rica	<5%
44	Chirripó National Park	🇨🇷 Costa Rica	<5%
45	Itatiaia National Park	🇧🇷 Brazil	<5%
46	Tambopata National Reserve	🇵🇪 Peru	<5%
47	Lago de Yojoa	🇭🇳 Honduras	<5%
48	Las Baulas Marine National Park	🇨🇷 Costa Rica	<5%
49	Anavilhanas National Park	🇧🇷 Brazil	<5%
50	Chapada Diamantina National Park	🇧🇷 Brazil	<5%
51	Chingaza National Natural Park	🇨🇴 Colombia	<5%
52	Monteverde Cloud Forest Reserve	🇨🇷 Costa Rica	<5%
53	Cañón del Sumidero National Park	🇲🇽 Mexico	<5%
54	Cordillera Azul National Park	🇵🇪 Peru	<5%
55	Palo Verde National Park	🇨🇷 Costa Rica	<5%
56	Celestún Biosphere Reserve	🇲🇽 Mexico	<5%
57	Los Nevados National Natural Park	🇨🇴 Colombia	<5%
58	Poás Volcano National Park	🇨🇷 Costa Rica	Insufficient data
59	Caroni Swamp	🇹🇹 Trinidad and Tobago	Insufficient data
60	Volcán Barú National Park	🇵🇦 Panama	Insufficient data

← Back to Poás Volcano National Park

Long-billed Gnatwren

About the Long-billed Gnatwren

Recent sightings of Long-billed Gnatwren in Poás Volcano National Park

Closest Relatives at Poás Volcano National Park

Sooty-capped Bush-Tanager

Slaty Flowerpiercer

Mountain Elaenia

Gray-breasted Wood-Wren

Rufous-collared Sparrow

Black-and-yellow Phainoptila

Mountain Thrush

Wilson's Warbler

Yellow-thighed Finch

Black-billed Nightingale-Thrush

Sooty Thrush

Common Chlorospingus

Global Distribution

Parks Where Found