Magellanic penguin (Spheniscus magellanicus) at a breeding and molting site in Estancia San Lorenzo, Argentina

magellanic penguin vocalizing breeding molting argentina wildlife nature animal behavior communication south america coastal marine conservation species habitat colony ecosystem observatory ecology nesting shore fauna flightless biodiversity vocalizations sandy terrain avian life sounds endangered environment characteristics natural wild penguins migratory sea birds interactions estuary southern hemisphere social preservation efforts equilibrium