White-browed Gnatcatcher
Photo © James M. Maley
Photo © James M. Maley — CC BY 4.0 — Source: iNaturalist #136232482The white-browed gnatcatcher (Polioptila bilineata) is a species of bird in the gnatcatcher family Polioptilidae. It is native to central and South America. This species was formerly considered a subspecies of the tropical gnatcatcher (Polioptila plumbea). == Taxonomy == The white-browed gnatcatcher was formally described in 1850 by the French naturalist Charles Lucien Bonaparte and given the binomial name Sylvia bilineata. Bonaparte specified the locality as Cartagena, a city on the Caribbean coast of Colombia. This species was formerly considered as a subspecies of the tropical gnatcatcher (Polioptila plumbea). The white-browed gnatcatcher was split from the tropical gnatcatcher based on morphology and phylogenetic data. Five subspecies are recognised: Polioptila bilineata brodkorbi Parkes, 1979 – south Mexico to north Costa Rica Polioptila bilineata superciliaris Lawrence, 1861 – north-central Costa Rica to north Colombia Polioptila bilineata cinericia Wetmore, 1957 – Coiba (island off south Panama) Polioptila bilineata bilineata (Bonaparte, 1850) – northwest Colombia to northwest Peru Polioptila bilineata daguae Chapman, 1915 – west-central Colombia
Corcovado National Park
Puerto Jiménez, Costa Rica
+444 birds+48 mammals
Where the Osa Peninsula juts into the Pacific, rainforest descends almost to the tide line, and Corcovado National Park protects one of Central America's most intact…
VIEW NATIONAL PARKManuel Antonio National Park
Quepos, Costa Rica
+426 birds+22 mammals
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VIEW NATIONAL PARKArenal Volcano National Park
Peñas Blancas, Costa Rica
+551 birds+21 mammals
Straddling the border between Alajuela and Guanacaste in northwestern Costa Rica, this national park rises dramatically around one of Central America's most active volcanic systems. The…
VIEW NATIONAL PARKTortuguero National Park
Roxana, Costa Rica
+420 birds+23 mammals
Canals and lagoons thread through a labyrinth of lowland rainforest where the Caribbean coast of Costa Rica meets the wetland frontier. This is terrain shaped by…
VIEW NATIONAL PARKBraulio Carrillo National Park
Las Horquetas, Costa Rica
+547 birds+18 mammals
Where the Caribbean slope descends from the central volcanic cordillera toward the humid lowlands of Heredia, Braulio Carrillo National Park preserves one of Costa Rica's most…
VIEW NATIONAL PARKPiedras Blancas National Park
Golfito, Costa Rica
+386 birds+24 mammals
Where the Golfo Dulce meets the southwestern Pacific coast of Costa Rica, Piedras Blancas National Park protects a dramatic transition zone where lowland rainforest descends toward…
VIEW NATIONAL PARKSanta Rosa National Park
Santa Elena, Costa Rica
+359 birds+30 mammals
Where Pacific-facing slopes descend from volcanic uplands toward the Guanacaste lowlands, Santa Rosa National Park unfolds across a mosaic of tropical dry forest, gallery woodland, and…
VIEW NATIONAL PARKGuanacaste National Park
Santa Elena, Costa Rica
+461 birds+17 mammals
Where the Pacific slopes of northwestern Costa Rica rise toward the Continental Divide, dry tropical forest gives way to cloud-laden peaks and misty ridges—a landscape that…
VIEW NATIONAL PARKCerros de Amotape National Park
District of San Jacinto, Ecuador
+246 birds+1 mammals
Arid mountains rise abruptly from Peru's northwestern frontier, their slopes clothed in xerophytic scrubland and seasonal deciduous forest that transforms these Andean foothills into one of…
VIEW NATIONAL PARKPodocarpus National Park
Zamora, Ecuador
+496 birds+6 mammals
Where the Andes descend toward the Amazon basin, Podocarpus National Park sprawls across nearly 2,800 square kilometres of the most biodiverse terrain in Ecuador's southern highlands.…
VIEW NATIONAL PARKNatural Utría National Park
Alto Baudó (Pie de Pató), Colombia
+372 birds+11 mammals
Where the Chocó's coastal mountains plunge toward the Pacific, Utría National Park preserves one of Colombia's most biodiverse and least-visited wilderness expanses. Sprawling across 1,287 square…
VIEW NATIONAL PARKNatural Uramba Bahía Málaga National Park
Buenaventura, Colombia
+308 birds+15 mammals
Where the Pacific coastal rainforest descends to mangrove estuaries and rocky headlands, Uramba Bahía Málaga National Park unfolds across nearly 1,000 square kilometres of Colombia's Valle…
VIEW NATIONAL PARKCoiba National Park
Montijo, Panama
+260 birds+10 mammals
An archipelago of volcanic and sedimentary islands rises from the Pacific waters off Panama's southwestern coast, its densest rainforest canopy unbroken for millennia. Coiba National Park…
VIEW NATIONAL PARKBaru Volcano National Park
Cerro Punta, Panama
+402 birds+6 mammals
Where the land rises sharply toward the Caribbean's western spine, Baru Volcano National Park sprawls across roughly 220 square kilometres of southwestern Panama, anchored by the…
VIEW NATIONAL PARKGeneral de División Omar Torrijos Herrera National Park
La Pintada, Panama
+401 birds+2 mammals
Across the highlands of central Panama, where the continental divide funnels moisture-laden trade winds into steep river valleys, the terrain rises and falls in a landscape…
VIEW NATIONAL PARKSoberanía National Park
Cristóbal, Panama
+495 birds+34 mammals
Rainforest and riverine woodland blanket the rolling terrain of this 714-square-kilometre national park in Colón Province, where the Caribbean watershed feeds a maze of streams and…
VIEW NATIONAL PARKChagres National Park
Caimitillo, Panama
+486 birds+19 mammals
Where the Chagres River carves through the humid tropics of central Panama, a vast montane and lowland forest sprawls across more than 2,300 square kilometers, anchoring…
VIEW NATIONAL PARKDarién National Park
Tucutí, Panama
+534 birds+13 mammals
Where the spine of Central America crumbles into wetland and rainforest, Darién National Park sprawls across more than 20,000 square kilometres of some of the tropics'…
VIEW NATIONAL PARKPortobelo National Park
Portobelo, Panama
+366 birds+9 mammals
Where the Caribbean's turquoise waters meet the Darién's verdant shore, Portobelo National Park sprawls across 570 square kilometers of coastal forest, mangrove wetland, and coral-fringed islands…
VIEW NATIONAL PARKSian Ka’an
Chunyaxché, Mexico
+350 birds+16 mammals
Where the Yucatán Peninsula dissolves into wetland and mangrove, a vast mosaic of forest, lagoon, and coastal margin creates one of Mexico's most biodiverse strongholds. Across…
VIEW BIOSPHERE RESERVEMontes Azules
Candelaria, Mexico
+395 birds+47 mammals
Where jungle-clad limestone plateaus plunge into canyon systems carved by the Usumacinta River, Mexico's most pristine rainforest reserve unfolds across the Lacandón region of Chiapas. Montes…
VIEW BIOSPHERE RESERVETikal National Park
Tikal, Guatemala
+399 birds+16 mammals
Dense rainforest canopy rises above the limestone plateau of Petén, where archaeological wonder and ecological richness merge seamlessly across one of Central America's most biodiverse landscapes.…
VIEW NATIONAL PARKLaguna del Tigre National Park
Petén, Guatemala
+399 birds+29 mammals
Where the Petén lowlands dissolve into wetland and forest, Laguna del Tigre National Park protects one of Guatemala's most ecologically vital landscapes. This sprawling reserve encompasses…
VIEW NATIONAL PARKSierra del Lacandón National Park
Petén, Guatemala
+348 birds+7 mammals
Where the Petén rainforest rises into limestone ridges and deep ravines, Sierra del Lacandón National Park protects one of Central America's most intact tropical wilderness zones.…
VIEW NATIONAL PARKCarara National Park
Tárcoles, Costa Rica
+397 birds+19 mammals
Where the Pacific coastal plain meets transitional forest, Carara National Park straddles one of Central America's most dynamic ecological boundaries. The park's landscape encompasses lowland deciduous…
VIEW NATIONAL PARKPalo Verde National Park
Bagaces, Costa Rica
+318 birds+24 mammals
Dry forest spreads across Palo Verde's low-lying terrain in northwestern Guanacaste, where seasonal rivers and lagoons etch through deciduous woodland that sheds its canopy each winter.…
VIEW NATIONAL PARKCahuita National Park
Talamanca, Costa Rica
+359 birds+15 mammals
Where the Caribbean shoreline dissolves into mangrove creeks and coral gardens, Cahuita's mosaic of habitats unfolds across the Limón coast. The park's signature feature—a living coral…
VIEW NATIONAL PARKRincón de la Vieja National Park
Liberia, Costa Rica
+451 birds+30 mammals
Where volcanic slopes rise abruptly from the Guanacaste lowlands, Rincón de la Vieja National Park sprawls across a landscape shaped by geothermal drama and seasonal extremes.…
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Orosi, Costa Rica
+503 birds+18 mammals
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VIEW NATIONAL PARKLa Amistad International Park
Crorina, Costa Rica
+532 birds+20 mammals
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VIEW NATIONAL PARKBarbilla National Park
Chirripó, Costa Rica
+226 birds
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VIEW NATIONAL PARKVolcán Tenorio National Park
Guatuso, Costa Rica
+480 birds+12 mammals
Where volcanic slopes rise through Costa Rica's northwestern borderlands, Volcán Tenorio National Park sprawls across terrain shaped by ancient lava flows and mineral-rich springs. The park's…
VIEW NATIONAL PARKMarino Ballena National Park
Bahía Ballena, Costa Rica
+336 birds+8 mammals
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VIEW NATIONAL PARKMarino Las Baulas National Park
Santa Cruz, Costa Rica
+246 birds+9 mammals
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Caño Negro District, Costa Rica
+486 birds+16 mammals
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VIEW WILDLIFE SANCTUARYGandoca-Manzanillo National Wildlife Refuge
Manzanillo, Costa Rica
+394 birds+18 mammals
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VIEW WILDLIFE SANCTUARYBarra del Colorado National Wildlife Refuge
Tortuguero, Costa Rica
+462 birds+36 mammals
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VIEW WILDLIFE SANCTUARYCurú National Wildlife Refuge
Paquera, Costa Rica
+249 birds+8 mammals
Where the Pacific coast of Puntarenas dissolves into dry deciduous forest and mangrove fringe, Curú Wildlife Sanctuary holds one of Costa Rica's most ecologically vital yet…
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