'Sparrow' (iii) was a British operation by the Special Operations Executive to give additional radio training to Milorg military resistance organisation operators in German-occupied Norway, assist them in ensuring a reliable communication service with the UK, and if necessary to aid radio operators outside Oslo (February/May 1945).

Norman Gabrielsen had been working with the Milorg’s central leadership since the autumn of 1943, and this was a continuation of his earlier work.