Worm-eating Warbler

Helmitheros vermivorum

Silhouette: Andy Wilson · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered

KingdomAnimalia (Animals)
PhylumChordata (Chordates)
ClassAves (Birds)
OrderPasseriformes (Perching Birds)
FamilyParulidae (New World Warblers)
GenusHelmitheros
SpeciesHelmitheros vermivorum (Worm-eating Warbler)

Daily sighting probability Insufficient data

at Gandoca-Manzanillo Wildlife Refuge

1 Verified sightings at Gandoca-Manzanillo Wildlife Refuge From 2019 to 2026

3,549 Verified sightings across all 50 parks From 2019 to 2026

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

About the Worm-eating Warbler

The worm-eating warbler (Helmitheros vermivorum) is a small New World warbler that breeds in the Eastern United States and migrates to southern Mexico, the Caribbean, and Central America for the winter. It is the only species in the genus Helmitheros.

The worm-eating warbler was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with the wagtails in the genus Motacilla and coined the binomial name Motacilla vermivora. Gmelin based his account on the "worm-eater" that had been described and illustrated in 1760 by the English naturalist George Edwards in his Gleanings of Natural History. Edwards had received a specimen from the American naturalist William Bartram that had been collected in Pennsylvania. The worm-eating warbler is now placed in the genus Helmitheros that was introduced in 1819 by the French polymath Constantine Samuel Rafinesque. The genus name combines the Ancient Greek helmins meaning "worm", and -thēras meaning "hunter". The specific epithet vermivorum is from Latin vermis meaning "worm" and -vorus meaning "-eating". The species is monotypic:... Wikipedia →

Closest Relatives at Gandoca-Manzanillo Wildlife Refuge

Setophaga petechia

Daily sighting probability ~20% · Possible

Parkesia noveboracensis

Daily sighting probability ~20% · Possible

Setophaga pensylvanica

Daily sighting probability ~20% · Possible

Leiothlypis peregrina

Daily sighting probability ~10% · With luck

Protonotaria citrea

Daily sighting probability ~10% · With luck

Setophaga castanea

Daily sighting probability ~10% · With luck

Geothlypis semiflava

Daily sighting probability ~10% · With luck

Setophaga fusca

Daily sighting probability ~10% · With luck

Myiothlypis fulvicauda

Daily sighting probability <5% · Rare

Geothlypis philadelphia

Daily sighting probability <5% · Rare

Cardellina canadensis

Daily sighting probability <5% · Rare

Mniotilta varia

Daily sighting probability <5% · Rare

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	Blue and John Crow Mountains National Park	🇯🇲 Jamaica	~30%
2	Biotopo Cerro Cahuí	🇬🇹 Guatemala	~20%
3	Montes Azules Biosphere Reserve	🇲🇽 Mexico	~20%
4	Tikal National Park	🇬🇹 Guatemala	~20%
5	Cockscomb Basin Wildlife Sanctuary	🇧🇿 Belize	~10%
6	Calakmul Biosphere Reserve	🇲🇽 Mexico	~10%
7	Pico Bonito National Park	🇭🇳 Honduras	~10%
8	El Triunfo	🇲🇽 Mexico	~10%
9	Ciénaga de Zapata	🇨🇺 Cuba	~10%
10	Sian Ka'an Biosphere Reserve	🇲🇽 Mexico	~10%
11	Shenandoah National Park	🇺🇸 United States	<5%
12	Arrecifes de Cozumel National Park	🇲🇽 Mexico	<5%
13	La Tigra National Park	🇭🇳 Honduras	<5%
14	Cusuco National Park	🇭🇳 Honduras	<5%
15	Cañón del Sumidero National Park	🇲🇽 Mexico	<5%
16	Congaree National Park	🇺🇸 United States	<5%
17	Cabo Blanco Absolute Nature Reserve	🇨🇷 Costa Rica	<5%
18	Rincón de la Vieja National Park	🇨🇷 Costa Rica	<5%
19	Santa Rosa National Park	🇨🇷 Costa Rica	<5%
20	Carara National Park	🇨🇷 Costa Rica	<5%
21	Everglades National Park	🇺🇸 United States	<5%
22	Manuel Antonio National Park	🇨🇷 Costa Rica	<5%
23	Lago de Yojoa	🇭🇳 Honduras	<5%
24	Bastimentos Island National Marine Park	🇵🇦 Panama	<5%
25	Monteverde Cloud Forest Reserve	🇨🇷 Costa Rica	<5%
26	Celestún Biosphere Reserve	🇲🇽 Mexico	<5%
27	Big Cypress National Preserve	🇺🇸 United States	<5%
28	Point Pelee National Park	🇨🇦 Canada	<5%
29	La Amistad International Park (Panama)	🇵🇦 Panama	<5%
30	Tenorio Volcano National Park	🇨🇷 Costa Rica	<5%
31	Tapantí-Macizo de la Muerte National Park	🇨🇷 Costa Rica	<5%
32	Arenal Volcano National Park	🇨🇷 Costa Rica	<5%
33	Soberanía National Park	🇵🇦 Panama	<5%
34	Celaque National Park	🇭🇳 Honduras	Insufficient data
35	Coiba National Park	🇵🇦 Panama	Insufficient data
36	Marino Ballena National Park	🇨🇷 Costa Rica	Insufficient data
37	Volcán Barú National Park	🇵🇦 Panama	Insufficient data
38	Cahuita National Park	🇨🇷 Costa Rica	Insufficient data
39	Ostional Wildlife Refuge	🇨🇷 Costa Rica	Insufficient data
40	Cerro Azul Meámbar National Park	🇭🇳 Honduras	Insufficient data
41	Chirripó National Park	🇨🇷 Costa Rica	Insufficient data
42	Masaya Volcano National Park	🇳🇮 Nicaragua	Insufficient data
43	Chagres National Park	🇵🇦 Panama	Insufficient data
44	Gandoca-Manzanillo Wildlife Refuge	🇨🇷 Costa Rica	Insufficient data
45	Corcovado National Park	🇨🇷 Costa Rica	Insufficient data
46	Parque Natural Metropolitano	🇵🇦 Panama	Insufficient data
47	Braulio Carrillo National Park	🇨🇷 Costa Rica	Insufficient data
48	Tortuguero National Park	🇨🇷 Costa Rica	Insufficient data
49	Acadia National Park	🇺🇸 United States	Insufficient data
50	Saguaro National Park	🇺🇸 United States	Insufficient data

← Back to Gandoca-Manzanillo Wildlife Refuge

Worm-eating Warbler

About the Worm-eating Warbler

Recent sightings of Worm-eating Warbler in Gandoca-Manzanillo Wildlife Refuge

Closest Relatives at Gandoca-Manzanillo Wildlife Refuge

Yellow Warbler

Northern Waterthrush

Chestnut-sided Warbler

Tennessee Warbler

Prothonotary Warbler

Bay-breasted Warbler

Olive-crowned Yellowthroat

Blackburnian Warbler

Buff-rumped Warbler

Mourning Warbler

Canada Warbler

Black-and-white Warbler

Global Distribution

Parks Where Found