1. European Centre for Disease Prevention and Control, European Reference Laboratory for Avian Influenza, Adlhoch C, Fusaro A, Gonzales JL, Kuiken T, Marangon S, Niqueux É, Staubach C, Terregino C, Aznar I, Muñoz Guajardo I and Baldinelli F. Scientific report: Avian influenza overview March–June 2022.;European Food Safety Authority;EFSA J,2022
2. Avian influenza leads to mass mortality of adult Great Skuas in Foula in summer 2022.;Camphuysen;Scottish Birds.,2002
3. Vergeer JW, van Dijk AJ, Boele A, van Bruggen J, Hustings F. Sovon breeding bird research manual: breeding bird monitoring project and colony birds [in Dutch]. 2016 [cited 2022 Jul 19]. https://stats.sovon.nl/static/publicaties/Handleiding_Broedvogels_2016.pdf
4. Brenninkmeijer A, Stienen EWM. Ecological profile of the Sandwich tern (Sterna sandvicensis) [in Dutch]. Arnhem: DLO-Instituut voor Bos- en Natuuronderzoek; 1992.
5. Koffijberg K, de Boer P, Geelhoed SCV, Nienhuis J, Schekkerman H, Oosterbeek K, Breeding success of coastal breeding birds in the Wadden Sea in 2019. WOt-technical report 209. Wageningen: Wettelijke Onderzoekstaken Natuur & Milieu; 2021.