The sheep farmer from the southern province of Chubut was found guilty last month of destroying dozens of nests and killing chicks in 2021 while clearing land along the Punta Tumbo nature reserve, home to one of the main colonies of Magellanic penguins on the Atlantic coast.

The farmer is unlikely to be incarcerated as Argentina's penal code recommends alternatives to prison for a first conviction and sentences up to three years.

Prosecutors had requested a four-year sentence.

Environmental group Greenpeace, the complainant in the case, had welcomed the farmer's conviction as "an important step for environmental justice."

The farmer argued there was no choice but to clear the land as the state had failed to set up an access route to his property, or boundaries between his farm and the reserve.

The Magellanic Penguin is listed as a species of "least concern" on the International Union for Conservation of Nature's Red List, meaning it is not at risk of extinction even though numbers are in decline.