Various logs, notes and lists relating to ornithological and other observations. In Nicholson's hand and typescript. Included are the following: 6 page manuscript notes taken from 'daily log' for 19 Jul-25 Aug 1929; 6 manuscript notes headed 'Bustards 1/8/29'; photocopies of typescript logs of treetop watches, 1929, c. 1987 (Nicholson appears to have attempted to transcribe or re-write the original logs c.1987. These later versions have numerous annotations and revisions).