Copyright holder
| Copyright Holder: | Alan Root |
| Address: | P.O. Box 43747 |
| Nairobi 00100 | |
| Kenya | |
| Telephone: | +254 20 606 222 |
| Email: | silverback@swiftkenya.com |
| Copyright Holder: | BBC - Natural History Unit |
| Address: | c/o BBC Motion Gallery |
| Room E251 | |
| Woodlands | |
| 80 Wood Lane | |
| London | |
| W12 0TT | |
| Telephone: | +44 (0) 20 8433 2861 / 2 |
| Email: | motiongallery.uk@bbc.co.uk |
| Website: | http://www.bbcmotiongallery.com |
Film credits
| Film Editor: | Robin Hellier |
| Presenter: | David Attenborough |
| Interviewee: | Alan Root |
| Photography: | Alan Root |
| Commentary: | Anthony Smith |
| Producer: | Martyn Suker |
| Editor: | Fiona Pitcher |
| Sound Mixer: | Ann Goodliffe |
| Presenter: | Suzanne Gibbs |



