Back to Secrets of Nature: The Sparrow-HawkCopyright holder
| Copyright Holder: | British Film Institute (BFI) |
| Email: | [email protected] |
| Website: | http://www.bfi.org.uk |
Film credits
| Editor: | W. P. Pycraft |
| Photographer: | Charles (Chas) William Robert Knight |
| Producer: | Charles (Chas) William Robert Knight |
| Production Organisation: | British Instructional Films Limited |
| Production Organisation: | New Era Films Ltd. |
