Aside from climate change and pollution, penguins are now facing one more threat from humanity: President Donald Trump’s tariffs.

The sweeping tariffs President Donald Trump announced Wednesday include three remote, uninhabited islands in Australia populated by penguins.The administration slapped Norfolk Island (population 2,000) with 29 percent tariffs and Heard (population 0) and McDonald (population 0) islands with 10 percent tariffs because of erroneous trade data and mislabelled shipments of goods such as aquarium systems,

President Trump’s tariffs don’t just cover big U.S. trading partners. They also target tiny islands and territories, some with more penguins than people. Among the places grappling with new U.S. import duties: Norfolk Island—a subtropical Australian territory of some 2,