AIResidents and travelers
Warblers
Two warblers breed here; many others use the archipelago as refuge or stopover.
Reviewed:Date is a field mark.
Adelaide's and Elfin-woods are endemic breeders; in fall and winter travelers join mangrove, forest, coffee, and garden communities.
Sex, age, and plumage change. Seek eyebrow, eye ring, wing bars, tail, breast, foraging, and layer; a sequence beats a blurred photo.
Residents and travelers
The guide at a glance
12linked profilesA focused selection connects the guide with verifiable species.
3reading lensesContext, identification, and practical decisions organized by topic.
5primary sourcesAgencies, research, and ornithological organizations support the content.
01
Two endemics, two maps
Adelaide's is yellow and gray and linked to the dry south; Elfin-woods is black-and-white in wet and montane eastern and western forests.
At Maricao both fit one trip, not necessarily one microzone. Habitat, municipality, elevation, pattern, and voice must agree.
02
The migration mosaic
Black-and-white creeps on trunks; Redstart fans its tail; waterthrush walks by streams; Mangrove Warbler directs attention coastward.
For rarities document head, wings, tail, underparts, voice, and exact date. The same plumage changes probability between October and June.
Linked profiles
Birds to compare
Open each profile to review names, marks, audio, habitat, status, and sources.
Sound archive
Hear its voice
Explore real songs and calls. The spectrogram turns each sound into a visual trace of time and frequency.
XC682521Recording 1 of 3song
Play: song by Rainforest Connection
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Sound recorded by Rainforest Connection · XC682521 · CC BY-NC-SA 4.0. Visualization by Stichting Xeno-canto voor Natuurgeluiden.
Every recording retains the creator, catalogue number, and license published by Xeno-canto. Metadata via GBIF ↗
01
How many endemic warblers are there?
Two: Adelaide's and Elfin-woods Warblers, with different ranges and habitats.
02
Which one walks on trunks?
Black-and-white Warbler forages over trunks and limbs.
03
How do I verify an identification or claim?
Compare more than one mark, check date and place, open the linked profile, and consult the sources published at the end of the guide.
Keep exploring
Connected routes
Sources and review
The evidence is one link away.
These sources support the editorial scope of this guide. Bird profiles also retain their own taxonomy, occurrence, and conservation references.
Reviewed:
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Sociedad Ornitológica Puertorriqueña
Official bird list
Local names, occurrence categories, and the public summary of 17 endemics.U.S. Fish and Wildlife Service
Elfin-woods Warbler status
Range, habitat, and basis for federal status.Departamento de Recursos Naturales y Ambientales
Maricao State Forest
Geology, climate, and endemic birds of the western mountain forest.Corriente Verde
Migratory birds of the archipelago
Local introduction to the origins, routes, and seasons of migratory visitors.U.S. Forest Service Research and Development
Puerto Rico Breeding Bird Atlas
Distribution and breeding timing for 130 species breeding in Puerto Rico and its satellite islands.Macaulay Library / Cornell Lab of Ornithology
Puerto Rico sound archive
Complementary audio collection for comparing songs, calls, locations, and dates.The atlas continues