81. LKA3.9 Reference (shelfmark): LKA3.9 Title: The language of animals - 5. Monkeys and apes Scope & Content: Various drafts Collection Area: Sound Archive Languages: English Date Range: 1954 Extent: 13 folios
82. LKA3.10 Reference (shelfmark): LKA3.10 Title: The language of animals - 6. The red deer Scope & Content: Various drafts Collection Area: Sound Archive Languages: English Date Range: 1954 Extent: 13 folios
83. LKA4.7 Reference (shelfmark): LKA4.7 Title: Birds in Britain - The patient listeners Scope & Content: Drafts and correspondence including 1961 repeat Collection Area: Sound Archive Languages: English Date Range: 1956-1961 Extent: 23 folios
84. LKA4.6 Reference (shelfmark): LKA4.6 Title: Birds in Britain no.39 - On being a young bird Scope & Content: Various drafts Collection Area: Sound Archive Languages: English Date Range: 1956 Extent: 41 folios
85. LKA3.6 Reference (shelfmark): LKA3.6 Title: The language of animals - 3. From Guinea-pigs to Seals Scope & Content: Script and various drafts Collection Area: Sound Archive Languages: English Date Range: 1954 Extent: 21 folios
86. LKA2.3 Reference (shelfmark): LKA2.3 Title: Bird Man - A radio tribute on Koch's 70th birthday (2 copies) Scope & Content: Draft and final script Collection Area: Sound Archive Languages: English Date Range: 1951 Extent: 29 folios
87. LKA11.4 Reference (shelfmark): LKA11.4 Title: Notes on bird species and Koch's recordings of them Scope & Content: Notes and typed drafts [English]. Undated document(s) Collection Area: Sound Archive Languages: English Date Range: Mid 20th century Extent: 41 folios
88. LKA10.3 Reference (shelfmark): LKA10.3 Title: La langage des animaux - La periode de la rotte de cerf sauvage [Rutting season of wild stags] Scope & Content: Draft scripts Collection Area: Sound Archive Languages: French Date Range: 1951 Extent: 7 folios