Chiefly in Nicholson's hand, with some typescript papers.

The material described here consists of general ornithological records distinct from the notebooks in MSS. 15041/152-161. It covers both organised fieldwork and casual observations in the UK and abroad. Many lists and notes are written on small pieces of paper and some are illegible.

The material is organised as follows: Large files organised geographically, Other groups of organised papers, and Miscellaneous bird lists and notes.