Henkes Islands is a group of small islands and rocks 2 nautical miles (3.7 km) in extent, lying 1 nautical mile (1.9 km) southwest of Avian Island

Avian Island

Avian Island is an island, long and high, lying close off the south tip of Adelaide Island, Antarctica. It was discovered by the French Antarctic Expedition, 1908–10, under Jean-Baptiste Charcot, and visited in 1948 by the Falkland Islands Dependencies Survey, who so named it because of...

, close off the south extremity of Adelaide Island

Adelaide Island

Adelaide Island or Isla Adelaida or Isla Belgrano is a large, mainly ice-covered island, long and wide, lying at the north side of Marguerite Bay off the west coast of the Antarctic Peninsula. The island lies within the Argentine, British and Chilean Antarctic claims, at .Adelaide Island was...

. Discovered by the French Antarctic Expedition

French Antarctic Expedition

French Antarctic Expedition refers to several French expeditions in Antarctica.-First expedition:Yves-Joseph de Kerguelen-Trémarec was a French explorer....

, 1908–10, under Charcot, and named by him for one of the Norwegian directors of the Magellan Whaling Co. at Punta Arenas. Charcot applied the name to the scattered rocks and islands between Cape Adriasola

Cape Adriasola

Cape Adriasola is a distinctive ice-cliffed cape at the southwest end of Adelaide Island, northwest of Avian Island. Discovered by the French Antarctic Expedition, 1908–10, and named by Jean-Baptiste Charcot for an acquaintance in Punta Arenas....

 and Cape Alexandra

Cape Alexandra

Cape Alexandra is a cape which forms the northwest extremity of South Georgia. It was named Cape North in 1775 by a British expedition under James Cook, but this name has since become established for a cape east-northeast which forms the northernmost point of South Georgia...

. The name was restricted to the group described by the United Kingdom Antarctic Place-Names Committee (UK-APC) following definitive mapping by the British Antarctic Survey

British Antarctic Survey

The British Antarctic Survey is the United Kingdom's national Antarctic operation and has an active role in Antarctic affairs. BAS is part of the Natural Environment Research Council and has over 400 staff. It operates five research stations, two ships and five aircraft in and around Antarctica....

 (BAS) in 1961 and the British Royal Navy Hydrographic Survey in 1963.