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Rufescent Tiger Heron

Tigrisoma lineatum
(Boddaert, P, 1783)
Hocó Colorado
Socó-boi

Family: Ardeidae
Order: Pelecaniformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

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Conservation status according to BirdLife International: Least Concern

Synonyms: Ardea lineata.

Subspecies:


Description: It is a medium to large-sized heron with a robust build and upright posture. Adults show a distinctive combination of rufous head and neck, contrasting with a dark gray dorsal area and a paler gray underside. From the throat to the upper chest, it displays long reddish and white streaks, a key identifying feature. The bill is strong and pointed, adapted for capturing aquatic prey, and the legs are long for wading in shallow waters. The eyes are usually pale and stand out against the face. At rest, it keeps its neck retracted, but when alert it extends it, making the streaked pattern more visible. Juveniles differ markedly, showing a heavily barred pattern in ochre, brown, blackish, and white tones, which provides effective camouflage among vegetation.

Geographic distribution: It is widely distributed across tropical and subtropical America, from southern Mexico to northern Argentina and Uruguay. It occurs throughout much of Central and South America, including Brazil, Paraguay, Bolivia, and Colombia. Although it may be locally common, it is often overlooked due to its secretive behavior and preference for densely vegetated habitats.

Habitat: It primarily inhabits freshwater wetlands, such as marshes, swamps, lagoons, and the edges of slow-moving rivers and streams. It favors areas with dense emergent or riparian vegetation, which provide cover and hunting grounds. It may also occur in floodplains and occasionally in mangroves. It tends to avoid heavily disturbed environments, preferring relatively well-preserved areas.

Feeding: Its diet mainly consists of fish, amphibians, and aquatic insects, though it may also take crustaceans and small reptiles. It uses a hunting strategy based on stillness and ambush, remaining motionless for long periods until detecting prey, then striking quickly and precisely with its bill. It may also move slowly through shallow water while carefully scanning its surroundings.

Behavior: This species is generally solitary and largely crepuscular, though it may be active during the day. It is known for its secretive and cautious behavior, often remaining still or moving slowly to avoid detection. When threatened, it may adopt rigid postures to blend with surrounding vegetation. Its flight is direct, with slow wingbeats and the neck retracted. Vocalizations are infrequent and low-pitched.

Nesting: It builds platform nests of sticks, usually placed in trees or shrubs near water. Breeding typically coincides with periods of higher food availability. The clutch usually consists of 2 to 4 eggs, and both parents share incubation and chick-rearing duties. The young remain in the nest until ready to fledge and are fed by regurgitation.

Conservation status: It is currently classified as Least Concern, due to its wide distribution and relatively stable population. However, it faces local threats such as wetland loss and degradation, pollution, and human disturbance. The conservation of wetland habitats is essential for its persistence.


Author of this compilation: EcoRegistros – 04/17/2026





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Last published photographs

Foto
Photography ID: 472559
  Adult

Islas Departamento Victoria
Entre Ríos
Argentina
03/19/2021
Max Uranga
Foto
Photography ID: 472558
  Adult

Islas Departamento Victoria
Entre Ríos
Argentina
03/19/2021
Max Uranga
Foto
Photography ID: 430278
♂ ♀
  Adult

Colonia Carlos Pellegrini
Corrientes
Argentina
12/22/2020
Max Uranga
Foto
Photography ID: 430257
  Immature

Colonia Carlos Pellegrini
Corrientes
Argentina
12/21/2020
Max Uranga
Foto
Photography ID: 405199
  Adult

Marcos Juárez
Córdoba
Argentina
04/24/2020
Max Uranga
Foto
Photography ID: 374541
  Adult

Rosario
Santa Fe
Argentina
12/11/2019
Max Uranga
Foto
Photography ID: 367861
  Juvenile

Los Conquistadores
Entre Ríos
Argentina
09/18/2019
Max Uranga
Foto
Photography ID: 305171
  Adult

Ruta 14 Santo tomé
Corrientes
Argentina
11/19/2018
Max Uranga
Foto
Photography ID: 239997
  Adult

Colonia Carlos Pellegrini
Corrientes
Argentina
11/26/2017
Max Uranga
Foto
Photography ID: 181941
  Adult

Puerto Eva Perón (ex. Puerto Velaz)
Chaco
Argentina
11/20/2016
Max Uranga



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 Reports


 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
150433719/03/2021ArgentinaEntre RíosIsla El Pimpollal, Islas Departamento VictoriaMax Uranga
135288522/12/2020ArgentinaCorrientesCamping municipal., Colonia Carlos PellegriniMax Uranga
135286421/12/2020ArgentinaCorrientesPuesto Guardaparque - Centro de Interpretación, Colonia Carlos PellegriniMax Uranga
127520924/04/2020ArgentinaCórdobaEstancia Aguila Cautiva, Isla Verde, Marcos JuárezMax Uranga
116929511/12/2019ArgentinaSanta FeIsla el Pimpollal, RosarioMax Uranga
114751718/09/2019ArgentinaEntre RíosEstancia San Jose de Los Ombues, Los ConquistadoresMax Uranga
85619319/11/2018ArgentinaCorrientesRuta 14 Santo toméMax Uranga
82313107/10/2018ArgentinaEntre RíosRuta Rosario-Victoria, Islas sobre el ParanáMax Uranga
67573426/11/2017ArgentinaCorrientesColonia Carlos PellegriniMax Uranga
66363605/11/2017ArgentinaEntre RíosIslas Departamento VictoriaMax Uranga
Page 1

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Citation recommended:

EcoRegistros. 2026. Rufescent Tiger Heron (Tigrisoma lineatum) - Species sheet. Acceded from https://www.ecoregistros.org on 19/04/2026.