Boothby, Claire; Redfern, Chris; Schroeder, Julia (2019). "An evaluation of canes as a management technique to reduce predation by gulls of ground-nesting seabirds". Ibis. 161 (2): 453–458. doi:10.1111/ibi.12702. hdl:10044/1/66825. ISSN1474-919X. S2CID92479448.
Boothby, Claire; Redfern, Chris; Schroeder, Julia (2019). "An evaluation of canes as a management technique to reduce predation by gulls of ground-nesting seabirds". Ibis. 161 (2): 453–458. doi:10.1111/ibi.12702. hdl:10044/1/66825. ISSN1474-919X. S2CID92479448.
Skarphéðinsson, Kristinn Haukur (October 2018). "Kría (Sterna paradisaea)" [Arctic Tern] (in Icelandic). Icelandic Institute of Natural History. Archived from the original on 22 April 2019. Retrieved 22 April 2019.
Boothby, Claire; Redfern, Chris; Schroeder, Julia (2019). "An evaluation of canes as a management technique to reduce predation by gulls of ground-nesting seabirds". Ibis. 161 (2): 453–458. doi:10.1111/ibi.12702. hdl:10044/1/66825. ISSN1474-919X. S2CID92479448.
Skarphéðinsson, Kristinn Haukur (October 2018). "Kría (Sterna paradisaea)" [Arctic Tern] (in Icelandic). Icelandic Institute of Natural History. Archived from the original on 22 April 2019. Retrieved 22 April 2019.
Gibbons, Chris. "Arctic Tern stamps". Archived from the original on 28 September 2006. Retrieved 24 August 2006.{{cite web}}: CS1 maint: unfit URL (link)
Boothby, Claire; Redfern, Chris; Schroeder, Julia (2019). "An evaluation of canes as a management technique to reduce predation by gulls of ground-nesting seabirds". Ibis. 161 (2): 453–458. doi:10.1111/ibi.12702. hdl:10044/1/66825. ISSN1474-919X. S2CID92479448.