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Tigrisoma lineatum

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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Synonyms: Ardea lineata.

Subspecies:





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Records from Uruguay

Conservation status according to BirdLife International: Least Concern


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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Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 691167
  Adult

Playa Seré
Colonia
Uruguay
06/11/2026
Luis Mier
Foto
Photography ID: 641993
 
San Javier
Río Negro
Uruguay
07/06/2025
Felipe Aguilar
Foto
Photography ID: 625778
  Juvenile

Laguna del Diario
Maldonado
Uruguay
02/13/2025
Pablo Eguia
Foto
Photography ID: 625777
  Juvenile

Laguna del Diario
Maldonado
Uruguay
02/13/2025
Pablo Eguia
Foto
Photography ID: 619444
  Adult

Maldonado
Maldonado
Uruguay
01/19/2025
Tramannoni Ariel
Foto
Photography ID: 610189
  Squab

San Carlos y alrededores
Maldonado
Uruguay
10/12/2024
Alejandra Pons
Foto
Photography ID: 576218
  Adult

Laguna del Diario
Maldonado
Uruguay
03/16/2024
Julián Tocce
Foto
Photography ID: 575813
  Adult

Guazuvirá norte
Canelones
Uruguay
03/13/2024
Julián Tocce
Foto
Photography ID: 523162
  Adult

Arroyo Yerbal grande
Treinta y Tres
Uruguay
01/01/2023
Luis Mier
Foto
Photography ID: 510412
  Adult

Rincón de Franquía
Artigas
Uruguay
10/10/2022
Alejandra Pons
Foto
Photography ID: 499893
  Adult

Arroyo Yerbal grande
Treinta y Tres
Uruguay
02/20/2022
Luis Mier



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Species reports



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
248254311/06/2026UruguayColoniaPlaya SeréLuis Mier
231581906/07/202514:10UruguayRío NegroSan Javier, San Javier1Felipe Aguilar
226167613/02/2025UruguayMaldonadoLaguna del Diario1Pablo Eguia
223873519/01/2025UruguayMaldonadoSolanas Club, MaldonadoTramannoni Ariel
219762712/10/2024UruguayMaldonadoSan Carlos y alrededoresAlejandra Pons
201132816/03/2024UruguayMaldonadoLaguna del Diario, Márgen Este., Laguna del DiarioJulián Tocce
201085213/03/2024UruguayCanelonesCamino rural, Guazuvirá norteJulián Tocce
171643201/01/2023UruguayTreinta y TresPaso del Yerbal, Arroyo Yerbal grandeLuis Mier
165531610/10/2022UruguayArtigasRincón de FranquíaAlejandra Pons
162036805/08/2022UruguaySaltoLago Salto Grande1Pablo Bruni
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Rufescent Tiger Heron (Tigrisoma lineatum) – Species account. Accessed from www.ecoregistros.org on 24/09/2026.