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The lake duck grows to 36–46 centimetres (14–18 in). Females weigh 510–700 grams (18–25 oz) and males 600–850 grams (21–30 oz). Males can be distinguished from Andean duck (Oxyura ferruginea), a similar species, by being smaller and having a flatter head. [2] Female ducks have an anti-corkscrew vagina made for difficult penetration.
It resembled a small ruddy duck or, even more, an Argentine blue-bill. A larger Middle Pleistocene fossil form from the southwestern United States was described as Oxyura bessomi; it was probably quite close to the ruddy duck. "Oxyura" doksana from the Early Miocene of Dolnice (Czech Republic) cannot be assigned to any anatine subfamily with ...
Lake duck, O. vittata The black-headed duck of Heteronetta is indisputably quite basal , looking more like a typical duck-like Anatidae with a short tail and normal bill. The masked duck of Nomonyx has a more intermediate position; it probably diverged from the lineage leading to the main radiation some time after Heteronetta .
The Oxyura genus is commonly referred to as stiff-tailed ducks. It is widely agreed that Oxyura and Nomonyx (a genus with a single species - the masked duck - Nomonyx dominicus) are sister groups, and these results have been shown in both trait-based and genome-based phylogenies over the past 30 years.
KAO Bar and Grill Argentine restaurant opening in Broward
The rufous hornero is the national bird of Argentina. This is a list of the bird species recorded in Argentina. The avifauna of Argentina has 1044 confirmed species, of which 18 are endemic, nine have been introduced by humans, 69 are rare or vagrants, two are thought to be extinct, and four and possibly a fifth have been extirpated. An ...
BUENOS AIRES (Reuters) -Argentine authorities have quarantined a cargo ship in the Parana River over a suspected case of mpox onboard, the government said on Tuesday, as global public health ...
During the summer, beautiful beaches such as Playa Bonita and Villa Tacul welcome sun-bathers; brave lake swimmers venture into its cold waters (chilled by melting snow). Lake Nahuel Huapi averages 14 °C (57 °F) in the summertime. Bariloche is the biggest city of a huge Lakes District, and it serves as a base for many excursions in the region.