| Authors(s) | Mawby P.J. |
| Year | 1973 |
| Title | Ornithological studies on Foula in 1972. Brathay Exploration Group Field Studies Report 24 |
| Authors(s) | Mawby P.J. |
| Year | 1973 |
| Title | Ornithological studies on Foula in 1972. Brathay Exploration Group Field Studies Report 24 |