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Callum Macgregor

An exclusively marine, medium-sized seabird, breeding on rocky cliffs along sea coasts and offshore islands (Ainley et al. 2021). It has a circumpolar distribution, with the European strongholds in the British Isles, Iceland, Denmark (Faroe Islands) and Norway (Keller et al. 2020). There is a clear gradient from the high-latitude populations being migratory (Svalbard), through partially migratory mid-latitude populations (N Britian, Faeroes, Iceland) to resident and locally dispersive birds in lower latitudes (Irish, North & Baltic Seas).

Season of assessment

B

Population trendIncreasing
Population size
(min-max, best estimate)
2990000-4430000,3660000
Red List categoryLC
Franks, S., Fiedler, W., Arizaga, J., Jiguet, F., Nikolov, B., van der Jeugd, Ambrosini, R, Aizpurua, O., Bairlein, F., Clark, J., Fattorini, N, Hammond, M., Higgins, D, Levering, H., Skellorn, W., Spina, F, Thorup, K. Walker, J., Woodward, I. and Baillie, S.R. (1) (2022) Online Atlas of the movements of European bird populations. https://migrationatlas.org EURING/CMS (1) Principal investigator
N records N individuals N recoveries
Mapped data*
Total available data
*Mapped data include only distant (>= 50 km) recoveries