Don't want to see ads? Sign up...




Species icon
Least Seedsnipe

Thinocorus rumicivorus
Eschscholtz, F, 1829
Agachona Chica
Agachadeira-mirim

Family: Thinocoridae
Order: Charadriiformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

 Request change
Filters

Records from Puerto Deseado


Description: Small seedsnipe measuring 18–19 cm, the smallest of the family. Compact body with small head, short neck, and short wedge-shaped tail. Cryptic plumage in cinnamon, beige, and brown tones with fine vermiculations. In flight, wings long and pointed; above similar to the back, below with contrast between dark coverts and white areas. Bill short, conical, yellowish with black tip, with a sheath at the base protecting the nostrils in windy, dry, and dusty environments. Legs yellow. Shows sexual dimorphism. Male: white throat, gray chest with a marked vertical black line dividing it, and well-defined black collar; belly white. Female: duller, with ochraceous head and chest heavily streaked. Juvenile similar to female. Very similar to the Ornate Seedsnipe (T. orbignyianus), with which it coexists: the male of this species is distinguished by the vertical black line on the chest, absent in the collared species. Females are very difficult to distinguish in the field.

Distribution: Broad distribution in South America along the Andes from Ecuador to Patagonia of Chile and Argentina, reaching Uruguay and southeastern Brazil during winter migration. In Argentina it presents two main subspecies: North (bolivianus): from northwestern Argentina (Jujuy to Mendoza), in high Andean environments. South (rumicivorus): Patagonia, breeding; in winter migrates north and east within the country, inhabiting plains and open fields, and occasionally recorded in the Falkland Islands. Performs partial migrations and altitudinal movements.

Habitat: Inhabits open environments: steppes, plains, scattered scrub, rocky slopes, and high Andean valleys. In the north it occurs at high elevations, while in Patagonia it may be found from sea level.

Behavior: Terrestrial species, generally in pairs or small groups; outside the breeding season may form flocks. Cryptic behavior, often remaining motionless or crouching to avoid detection. Walks slowly, alternating with rapid movements while feeding. Flight low, fast, and erratic, with abrupt changes in direction. Emits sharp, whistled, rapid vocalizations, more variable than in the collared seedsnipe, usually from the ground or in flight. The male plays a territorial and sentinel role during breeding.

Diet: Feeds mainly on plant material: shoots, leaves, and seeds; forages on the ground, alone or in small groups, pecking continuously.

Breeding: Nests on the ground, in a simple depression in open environments. Clutch of 3 to 4 eggs, pale with spots. Chicks are precocial and highly cryptic.

Conservation status: In Argentina it is categorized as Not Threatened (NT) and globally as Least Concern (LC). Locally common in suitable habitats, but potentially affected by habitat modification, especially mining and overgrazing.


Author of this compilation: Diego Carus and María Belén Dri – 03/04/2026





🌿 EcoRegistros Revista - Related Articles





Loading map...




Last published photographs

Foto
Photography ID: 392964
  Adult

Puerto Deseado
Santa Cruz
Argentina
03/10/2020
Jorge Schlemmer
Foto
Photography ID: 390055
  Adult

Puerto Deseado
Santa Cruz
Argentina
03/08/2020
Jorge Schlemmer
Foto
Photography ID: 388115
  Adult

Puerto Deseado
Santa Cruz
Argentina
02/06/2020
María Del Carmen Fabeiro
Foto
Photography ID: 381932
  Adult

Puerto Deseado
Santa Cruz
Argentina
02/06/2020
Maria Victoria Di Stasio
Foto
Photography ID: 251017
  Adult

Puerto Deseado
Santa Cruz
Argentina
02/02/2018
Elsa Longo
Foto
Photography ID: 249486
  Adult

Puerto Deseado
Santa Cruz
Argentina
02/02/2018
Guillermo Marcaida
Foto
Photography ID: 249485
  Adult

Puerto Deseado
Santa Cruz
Argentina
02/02/2018
Guillermo Marcaida
Foto
Photography ID: 132613
  Immature

Puerto Deseado
Santa Cruz
Argentina
01/06/2016
Christian Altamirano
Foto
Photography ID: 132612
  Immature

Puerto Deseado
Santa Cruz
Argentina
01/06/2016
Christian Altamirano
Foto
Photography ID: 130427
  Adult

Puerto Deseado
Santa Cruz
Argentina
12/23/2015
Ricardo Juliano
Foto
Photography ID: 130346
  Adult

Puerto Deseado
Santa Cruz
Argentina
12/22/2015
Ricardo Juliano
Foto
Photography ID: 71206
  Adult

Puerto Deseado
Santa Cruz
Argentina
12/04/2014
Mariano Costa



 View all photographs of the species




 Add a photography of this species





Last Vocalizations published




 Add an audio of this species





Last Filmings published


Video ID: 893
♂ ♀
  Adult

Puerto Deseado
Santa Cruz
Argentina
01/30/2015
Ruben Russo



 Ver todos los videos de la especie




 Add a film of this species





 Reports


 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
172336806/02/2023ArgentinaSanta CruzLaguna del Frigorifico, Puerto Deseado2Gabriel Carbajales
152508428/12/2021ArgentinaSanta CruzPuerto DeseadoGonzalo Camiletti
123348710/03/2020ArgentinaSanta CruzCostanera Mayor Lotufo, Puerto DeseadoJorge Schlemmer
121560408/03/2020ArgentinaSanta CruzRia Puerto Deseado, Puerto DeseadoJorge Schlemmer
121198306/02/2020ArgentinaSanta CruzCabo Blanco, Puerto DeseadoMaría Del Carmen Fabeiro
119250406/02/2020ArgentinaSanta CruzCabo Blanco, Puerto DeseadoMaria Victoria Di Stasio
112471607/10/2019ArgentinaSanta CruzPuerto DeseadoNicolas Olejnik
112546506/10/2019ArgentinaSanta CruzPuerto DeseadoNicolas Olejnik
151686120/01/2019ArgentinaSanta CruzMiradores de Darwin, Puerto Deseado5Luis Cesar Tejo
88002720/01/2019ArgentinaSanta CruzMiradores de Darwin, Puerto Deseado5Daniela Espinosa
Page 1

 Add a record of this species

Citation recommended:

EcoRegistros. 2026. Least Seedsnipe (Thinocorus rumicivorus) - Species sheet. Acceded from https://www.ecoregistros.org on 06/04/2026.