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Southern Lapwing / Quero-Quero

Vanellus chilensis lampronotus

Description:

(Wagler, 1827)

Charadriiformes: Charadrii: Charadriidae: Vanellinae

Outros nomes: Tetéu; Téu-Téu; Terém-Terém; Espanta-Boiada; Quem-Quem; Xexéu; Abibe-do-Sul.

Size/Tamanho: ~37cm in length / ~37cm em comprimento.

Weight/Peso: ~277g.

Habitat:

Eles costumam viver em banhados e pastagens. São também vistos em regiões antrópicas, como estradas, campos verdes e fazendas. As capivaras tiram vantagem do comportamento territorialista dessas aves, utilizando-se do grito de alerta deles para saberem quando o perigo está próximo. Habitam as campinas úmidas e espraiados de rios e lagoas. Também são frequentemente avistados longe da água.

They tend to live in wetlands and pastures. They are seen in anthropic regions as well, such as roads, green fields and farms. Capybaras take advantage from this bird's territorialist behaviour by taking their screams as a cue that danger approaches. They inhabit the large wetlands and the spiking points of rivers and lakes. They are also often found away from water.

Notes:

Esses pássaros não demonstram dimorfismo sexual. Alguns indivíduos de Vanellus chilensis demonstram leucismo, um gene recessivo que confere à plumagem do pássaro uma coloração branca. Se alimentam de pequenos invertebrados aquáticos, pequenos peixes, artrópodes terrestes e moluscos. Depositam cerca de 4 ovos no solo por ninhada que normalmente ocorre durante a Primavera. Machos são extremamente agressivos e protetores dos seus ninhos; em situações que fogem ao controle, eles podem fingir estarem machucados para afugentarem predadores. Os filhotes se misturam bem com o cenário, sendo da cor da terra, um mecanismo de defesa de camuflagem. São extremamente territoriais e irão alertar os outros contra intrusos com um grito estridente. São predados por Geranoaetus albicaudatus, Heterospizias meridionalis, Milvago chimango, Caracara plancus e Circus buffoni; desconheço se existem outros. Os filhotes já nascem sabendo caçar. Tanto o macho quanto as fêmeas chocam os ovos.

Quatro subespécies de Vanellus chilensis são descritas:

Vanellus chilensis cayennensis (Gmelin, 1789): Habita o Norte do Brasil, as Guianas, Venezuela, Colômbia, Noroeste do Ecuador e Panamá (observada em Costa Rica e Nicaragua);

Vanellus chilensis lampronotus (Wagler, 1827): Habita a cuenca del Plata, na Argentina, Uruguai, Paraguai, Sudeste da Bolívia e o Centro e Sul do Brasil;

Vanellus chilensis chilensis (Molina, 1782): Habitam o chile e o Oeste e Sul da Argentina;

Vanellus chilensis fretensis (Brodkorb, 1934): Habitam o Sul da Argentina e Chile.

ENGLISH VERSION HERE:

These birds do not showcase sexual dimorphism. Some individuals of Vanellus chilensis display leucism, a recessive gene that confers the bird's plumage a white coloring. They feed on small aquatic invertebrates, small fishes, terrestrial arthropods and mollusks. They lay up to 4 eggs on the soil per brooding which normally occurs during Spring. Males are extremely aggressive and protective of their nest; in uncontrollable situations, they might fake a wound to ward off predators. The offspring blend very well with the scenery, being ground-colored, a camouflage defensive mechanism. They are extremely territorial and will alert the others of intruders with a loud scream. They are predated by Geranoaetus albicaudatus, Heterospizias meridionalis, Milvago chimango, Caracara plancus and Circus buffoni; I'm unaware if there are others. The offspring are born already knowing how to hunt, they are not beak-fed by the adults. Both the male and female incubate the eggs.

Four subspecies of Vanellus chilensis are described:

Vanellus chilensis cayennensis (Gmelin, 1789): Inhabits the North of Brazil, the Guianas, Venezuela, Colombia, Northwest Ecuador and Panama (observed in Costa Rica and Nicaragua);

Vanellus chilensis lampronotus (Wagler, 1827): Inhabits cuenca del Plata, in Argentina, Uruguay, Paraguay, Southeast Bolivia and Central and Southern Brazil;

Vanellus chilensis chilensis (Molina, 1782): Inhabits Chile and the West and South of Argentina;

Vanellus chilensis fretensis (Brodkorb, 1934): Inhabits the South of Argentina and Chile.

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1 Comment

maplemoth662
maplemoth662 2 years ago

A beautiful photo....

Oscar Neto
Spotted by
Oscar Neto

SC, Brazil

Spotted on Oct 31, 2017
Submitted on Feb 10, 2018

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