Sir Thomas Browne's Notes and Letters on the Natural History of Norfolk, Especially Birds and Fishes, is an important source of information on the nature of Norfolk in the seventeenth century. This work examines various species of birds and fish, their habits, external features and locations. The author shares his observations, notes and letters, collecting a large amount of interesting and useful information for lovers of natural history and history. Readers will be able to discover much about Norfolk's bird and fish biodiversity in the past.