Thank you Nevasara for yet another great postcard. The penguin stamp was released in 2000 and the loon one in 2005.
Magellanic Penguin (Spheniscus maggellanicus): It lives in South America. It is of medium size and it feeds on crustaceans. It is a threatened species.
Black-throated or Arctic Loon (Gavia arctica): This migratory bird can be found in the northern hemisphere. It feeds on fish.