Notes on oystercatchers, author unknown (different handwriting than Buxton's), 1947 [Former reference: Item 20] 'Census of Birds seen on NW Field' by John Barrett, 1942, with additions by Buxton, 1942-1943 [Former reference: Item 21] 'Redstart: Casual Notes & References (Excluding Distribution)', n.d. [1940s] [Former reference: Item 22] 'Redstart: Notes on…