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Tringa sp.

Tringa sp.


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

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Records from Argentina

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Description


Characterized as an assemblage of slender, medium to large-sized shorebirds belonging to the family Scolopacidae, displaying elegant silhouettes, elongated necks, and distinctively long legs that range in coloration from bright yellow and vivid orange-red to subtle olive-green depending on the specific entity. Total body length typically varies between 20 and 36 cm, supported by wingspans reaching approximately 45 to 65 cm. The bill is slender, straight, or gently curved, functionally adapted for probing soft substrates and capturing surface aquatic prey. Dorsal plumage exhibits sophisticated disruptive coloration, dominated by cryptic tones of gray, brown, and blackish mottling during the breeding season, which shifts to plainer ash-gray tones in non-breeding dress, juxtaposed against clean whitish underparts or faintly streaked breasts. In flight, many members reveal a prominent white wedge-shaped rump patch or contrasting wing patterns complemented by rapid, purposeful wingbeats.

Geographical distribution: Presents a pronounced Holarctic breeding range across high-latitude landscapes, nesting extensively throughout the boreal zones, subarctic tundras, and temperate bogs of North America, Europe, and northern Asia. Functioning as remarkable long-distance migrants, these birds undertake expansive transcontinental and oceanic journeys toward southern wintering grounds located in Central America, South America, sub-Saharan Africa, South Asia, and Australasia, relying on well-defined global flyways.

Habitat: Inhabits a broad spectrum of aquatic and semi-aquatic ecosystems across different life cycle stages. The breeding grounds are primarily situated in peat bogs, wet moss tundras, taiga forest clearings, and marshy borders of freshwater lakes. During migratory stopovers and winter residency, they transition seamlessly to coastal and inland wetlands, occupying tidal mudflats, estuarine marshes, mangrove fringes, saline lagoons, inundated pastures, and agricultural rice paddies, consistently favoring shallow shorelines where water levels accommodate their tarsal height.

Feeding: Operates as a carnivorous and insectivorous predator targeting benthic invertebrates and small aquatic vertebrates. The dietary profile consists largely of dipteran larvae, water beetles, amphipods, polychaete worms, small gastropods, and micro-crustaceans. Opportunistic consumption of small fish fry and juvenile amphibians is also widely documented. Foraging tactics integrate both visual pecking and tactile probing; individuals walk rapidly along muddy margins, occasionally employing side-to-side bill sweeps or dynamic dashes through the shallows to snatch fleeing prey.

Behavior: Displays an energetic and highly vigilant demeanor, marked by an upright posture and a characteristic habit of continuous rhythmic bobbing of the head, neck, and tail—a prominent diagnostic kinematic behavior within Tringa. While roosting sites and migratory stopovers can gather large conspecific or mixed-species aggregations, foraging is generally conducted in loose, widely spaced groups or as solitary individuals defending temporary feeding zones. Vocalizations comprise loud, ringing whistles delivered in sharp, multi-noted sequences, serving as communication signals during flight or sharp alarms against potential raptorial threats.

Nesting: Breeds seasonally across northern latitudes, typically constructing a shallow scrape on the ground lined with dry leaves, mosses, and fine grasses, sheltered beneath dense dwarf shrubs or tufts of vegetation; exceptionally, some species utilize abandoned arboreal nests built by thrushes. The standard clutch consists of four pyriform eggs, colored in pale olive or warm buff and heavily overlaid with dark chocolate-brown speckles for camouflage. Incubation is shared by both adults, spanning roughly 21 to 25 days. The chicks are precocial and nidifugous, emerging fully feathered with dense down to forage independently shortly after hatching, achieving independent flight capability within three to four weeks.

Conservation status: Categorized predominantly under the conservation rank of Least Concern (LC) on the IUCN Red List of Threatened Species. Nevertheless, various populations face localized declines driven by the drainage of stopover wetlands, industrial contamination of estuarine habitats, shoreline development, and the overarching impacts of global climate disruption altering northern peatland and tundra nesting structures.



Compilation and publication: EcoRegistros – 22/10/2026




Geographic distribution


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Species photographs

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Foto
Photography ID: 466887
  Adult

Reserva Natural El Puente Verde
Misiones
Argentina
10/02/2021
Diego Carus



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
148307402/10/2021ArgentinaMisionesReserva Natural El Puente VerdeDiego Carus
133411619/12/2020ArgentinaBuenos AiresPastizal entre el Vivero y la Reserva, Parque Natural Municipal Ribera Norte (San Isidro)Diego Carus
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Tringa sp. – Species account. Accessed from www.ecoregistros.org on 24/10/2026.