BIRDING IN USHUAIA The group of CONICET researchers that together with the collaboration of Marcelo (Magellanic Nature Tours) study the natural changes in bird communities in Nothofagus forests of South Patagonia. To face changes of climate in the high latitude forests, long-term studies are necessary to determine the natural variability of the communities in order to develop better conservation strategies. For this, we studied closed and open forests inside the Tierra d