| Main Ref. | Summers, R.W., S. Smith, M. Nicoll and N.K. Atkinson, 1990 | ||
| Predator stage | juv./adults | ||
| Food I | zoobenthos | ||
| Food II | benth. crust. | ||
| Food III | crabs | ||
| Food group | Portunidae | Prey Stage/Part | juv./adults |
| Food name | Carcinus maenas | ||
| Commonness | |||
| Country | UK Scotland | ||
| Remark | Birds were collected during winter. | ||