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Pardirallus maculatus

Spotted Rail


Pardirallus maculatus

(Boddaert, P, 1783)
Gallineta Overa
Saracura-carijó

Family: Rallidae
Order: Gruiformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

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Synonyms: Rallus maculatus.

Subspecies:





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Conservation status according to BirdLife International: Least Concern


Description


Characterized by a medium-sized, slender body, this taxon measures between 25 and 28 centimeters in total length and weighs approximately 130 to 220 grams. Its plumage is highly distinctive and intricate, defined by a dense pattern of white spots and bars set against a dark brownish-black background on its head, neck, and upperparts, while the chest and belly present a sharply defined black-and-white barred pattern. The bill is long, slightly decurved, and displays a vivid yellowish-green coloration, marked by a conspicuous bright red spot at the base of the lower mandible, which serves as a vital diagnostic field mark. Its eyes are an intense, piercing red that contrasts beautifully with the dark head plumage, and its legs and feet are pinkish to reddish-brown, structurally adapted for walking over soft mud and floating vegetation rather than swimming.

Geographical distribution: Occupies a highly fragmented yet extensive range throughout the Neotropical region, extending from northern Mexico, through various Central American countries such as Guatemala, Belize, Costa Rica, and Panama, and far into South America. On the South American continent, it occurs locally in Colombia, Venezuela, Ecuador, Peru, Bolivia, Paraguay, Uruguay, northern Argentina, and across extensive territories of Brazil. Additionally, resident populations are well-documented on several Caribbean islands, including Cuba, Hispaniola, and Trinidad and Tobago, highlighting its unexpected dispersal capabilities despite its apparently weak flight.

Habitat: Primarily inhabits freshwater wetlands characterized by dense, emergent vegetation, including marshes, swamps, wet pastures, freshwater mangroves, and flooded agricultural fields, particularly rice paddies. It shows a strong preference for wetlands dominated by plants of the genera Typha, Scirpus, and Cyperus, which offer the dense, vertical cover necessary to evade predators. The species actively avoids deep, open water, selecting instead shallow-water microhabitats and saturated soils where it can easily walk, forage, and remain hidden beneath the protective canopy of marsh vegetation.

Feeding: Exhibits an omnivorous diet with a strong preference for aquatic invertebrates, which make up the bulk of its nutritional intake. It regularly consumes a wide variety of insects and their larvae, beetles, dragonflies, small mollusks such as freshwater snails, crustaceans, earthworms, and occasionally small vertebrates like tadpoles and small fish. This animal-based diet is supplemented with plant matter, including seeds of aquatic plants and tender grass shoots, which it searches for by probing the mud and inspecting floating vegetation.

Behavior: Is characterized by its extremely secretive, shy, and largely crepuscular and nocturnal habits, making direct field observations rare and challenging. It moves quietly through dense vegetation, walking with a deliberate gait while constantly flicking its tail upward in a rhythmic motion. When threatened, it prefers to run quickly through the dense undergrowth rather than taking flight; if forced to fly, its flight is weak, labored, and brief, with its legs dangling awkwardly before it drops back down into the safety of the reeds. It is far more frequently detected by its distinctive vocalizations, which consist of a series of harsh screeches and low grunts emitted mostly at dawn and dusk.

Nesting: Constructs a well-hidden, cup-shaped nest made of dry reeds, grasses, and sedges gathered from the immediate surroundings. These nesting platforms are typically suspended within dense vegetation, placed just above the water level, or built directly on top of floating aquatic plants to protect the clutch from fluctuating water levels. A typical clutch consists of 3 to 7 eggs of a creamy-buff color, heavily speckled with brown, reddish, and lavender spots. Both parents share the incubation duties, which last approximately 19 to 21 days, as well as the care of the precocial chicks, which hatch covered in jet-black down and are capable of leaving the nest to follow their parents within hours of hatching.

Conservation status: Is currently evaluated as Least Concern (LC) on the IUCN Red List of Threatened Species, owing to its vast geographical distribution. However, local populations of Pardirallus maculatus face severe threats from habitat loss and fragmentation caused by the draining of wetlands for agricultural conversion, water pollution from pesticide runoff and industrial waste, and rapid urban development, emphasizing the need for targeted wetland conservation strategies to ensure the survival of its scattered populations.



Compilation and publication: EcoRegistros – 03/08/2026

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Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 627717
  Adult

Corrientes
Corrientes
Argentina
09/24/2024
Esteban Geronimo Javier Luque
Foto
Photography ID: 619189
  Adult

Bella Unión
Artigas
Uruguay
11/08/2024
Adrian Antunez
Foto
Photography ID: 615469
  Adult

Capital
Misiones
Argentina
12/21/2024
Marcelo Javier Wioneczak
Foto
Photography ID: 611809
 
Ceibas
Entre Ríos
Argentina
11/30/2024
Santiago Juan Torres
Foto
Photography ID: 609101
  Adult

Rincón de Franquía
Artigas
Uruguay
11/14/2024
Guillermo Menéndez
Foto
Photography ID: 608491
  Adult

Turdera
Buenos Aires
Argentina
11/09/2024
Alec Earnshaw
Foto
Photography ID: 607217
  Adult

Resistencia
Chaco
Argentina
09/13/2024
Julián Tocce
Foto
Photography ID: 606583
  Adult

Mburucuyá
Corrientes
Argentina
10/07/2024
Alejandra Pons
Foto
Photography ID: 606267
  Adult

Resistencia
Chaco
Argentina
09/07/2024
Héctor Schreiber
Foto
Photography ID: 604392
  Adult

Turdera
Buenos Aires
Argentina
10/09/2024
Santos Di Mauro
Foto
Photography ID: 604391
  Adult

Turdera
Buenos Aires
Argentina
10/09/2024
Claudia Mora
Foto
Photography ID: 598451
  Adult

Ceibas
Entre Ríos
Argentina
09/08/2024
Gustavo Puente



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Species vocalizations

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Species videos

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Species reports



 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
221207521/12/2024ArgentinaMisionesReserva Urbana Arroyo Itá, CapitalMarcelo Javier Wioneczak
223301918/12/2024ArgentinaEntre RíosCamino a 4 Hermanas, CeibasDiego Oscar
221727017/12/2024ParaguaySan PedroEstero Jetyty zona Colonia 21Dominic Oviedo Löwen
220317330/11/2024ArgentinaEntre RíosCeibas1Diego Oscar
220277430/11/2024ArgentinaEntre RíosCamino a Río de las Aves, Ceibas1Carlos Enrique Alvarez
220274130/11/2024ArgentinaEntre RíosCeibas1Gisela Ballent
220225230/11/2024ArgentinaEntre RíosCeibas1Santiago Juan Torres
220132826/11/2024ArgentinaEntre RíosCeibas3Diego Oscar
219051214/11/2024UruguayArtigasRincón de FranquíaGuillermo Menéndez
218545509/11/2024ArgentinaBuenos AiresParque Municipal Finky, TurderaAlec Earnshaw
Page 1

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Related bibliography


Artículo Lucero, F. 2010. Aves nuevas, raras o con pocos registros para las provincias de Mendoza y San Juan. Nuestras Aves, 54: 57-62.



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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Spotted Rail (Pardirallus maculatus) – Species account. Accessed from www.ecoregistros.org on 13/10/2026.