Instructions to Young Sportsmen".

Hawker kept a regular diary that contains observations of Europe before and after the Napoleonic period and of waterfowl hunting and game-bird shooting, as well as detailed descriptions of hunting techniques and conditions prevalent in the late 18th and early 19th centuries. His diary, printed in an abridged form in two volumes, became a popular work. The most recent edition was published in 1988. Hawker also published an originally anonymous memoir of the Peninsular