Laguna de los Cisnes Natural Monument

The flora of the reserve is minimal: the seven islets that compose the protected area are essentially devoid of vegetation. Meanwhile, the fauna is dominated by a rich avifauna, making the lagoon a vital sanctuary for birdlife. Among the species recorded are the black‑necked swan (Cygnus melancoryphus), the Coscoroba swan (Coscoroba coscoroba), the Chilean flamingo (Phoenicopterus chilensis), and various ducks, geese such as the Caiquén, and raptors like the Carancho (Polyborus plancus).^[4] As one of the few brackish lagoons in southern Patagonia — freshwater with notable saline characteristics — it also supports planktonic communities, including microalgae and brine shrimp, which in turn sustain waterbirds. The protected status of the area reflects its importance as a breeding, feeding and resting site for dozens of bird species, particularly during the austral spring and summer. Conservation measures prohibit disturbance to nesting sites, removal of biological material, and any activity that might harm the avifauna, underlining the lagoon's role as a refuge for wildlife diversity.

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