Flyways: the untold journey of migratory shorebirds Filming Locations

Mauritania, officially the Islamic Republic of Mauritania, is a sovereign country in Northwest Africa. It is bordered by the Atlantic Ocean to the west, Western Sahara to the north and northwest, Algeria to the northeast, Mali to the east and southeast, and Senegal to the southwest.

Alaska is a non-contiguous U.S. state on the northwest extremity of North America. It is in the Western United States region. The only other non-contiguous U.S. state is Hawaii. Alaska is also considered to be the northernmost, westernmost, and easternmost state in the United States. To the east, it borders Canada.

Siberia is a vast Russian province encompassing most of Northern Asia, with terrain spanning tundra, coniferous forest and mountain ranges including the Ural, Altai and Verkhoyansk. Lake Baikal, in its south, is the world’s deepest lake, circled by a network of hiking paths called the Great Baikal Trail. The Trans-Siberian Railway passes Baikal on its route between Moscow and the Sea of Japan.

Chile is a long, narrow country stretching along South America's western edge, with more than 6,000km of Pacific Ocean coastline. Santiago, its capital, sits in a valley surrounded by the Andes and Chilean Coast Range mountains. The city's palm-lined Plaza de Armas contains the neoclassical cathedral and the National History Museum. The massive Parque Metropolitano offers swimming pools, a botanical garden and zoo.

The U.S. is a country of 50 states covering a vast swath of North America, with Alaska in the northwest and Hawaii extending the nation’s presence into the Pacific Ocean. Major Atlantic Coast cities are New York, a global finance and culture center, and capital Washington, DC. Midwestern metropolis Chicago is known for influential architecture and on the west coast, Los Angeles' Hollywood is famed for filmmaking.

Ontario is a province in east-central Canada that borders the U.S. and the Great Lakes. It's home to Ottawa, Canada's capital, known for Parliament Hill’s Victorian architecture and the National Gallery, featuring Canadian and indigenous art. Toronto, Ontario's capital, is home to the 553m-high CN Tower, with expansive views from its revolving restaurant, as well as High Park, site of a rare oak savannah habitat.

Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's second-largest country by total area, with the world's longest coastline.

China, officially the People's Republic of China, is a country in East Asia. With a population exceeding 1.4 billion, it is the world's second-most populous country after India. China spans the equivalent of five time zones and borders fourteen countries by land.

Taiwan, officially the Republic of China, is a country in East Asia. The main island of Taiwan, also known as Formosa, lies between the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China to the northwest, Japan to the northeast, and the Philippines to the south.