South Polar Skua
Introduction
South Polar Skua breeds in the southern hemisphere although tracking studies show some individuals migrate to the North Atlantic.
South Polar Skua can be very difficult to distinguish from Great Skua, especially under typical seawatching conditions. The first British record concerns a bird that spent nine days on a Dorset beach, allowing close scrutiny and collection of DNA material.
Key Stats

Status and Trends
Population Change
Population trends of this scarce species are not routinely monitored.
Distribution
This vagrant is too rarely reported to map distribution.
Distribution Change
This vagrant is too rarely reported to map distribution change.
Seasonality
This species has been too rarely reported to BirdTrack during 2011–22 to properly assess seasonality.
Movement
Biology
Survival and Longevity
Survival is shown as the proportion of birds surviving from one year to the next and is derived from bird ringing data. It can also be used to estimate how long birds typically live.
Classification, names and codes
Classification and Codes
- Scientific name: Stercorarius maccormicki
- BTO 5-letter code: SOPSK
- Euring code number: 5700