Larus thayeri was reported from 10 countries/islands


Table 1: the species is currently present in 4 of them (endemic, native, introduced);
Table 2: possible in 6 of them (stray, questionable);
Table 3: absent from 0 of them (extirpated, not established, misidentification, error).
Table 4: all reports listed together.

Distribution: Northern Pacific, Northern Atlantic and the Arctic. Subtropical to polar.
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Table 1: Present in 4 countries/islands (endemic, native, introduced)
Continent Country Occurrence Main Ref.
North America Canada CAN native 7816
North America Greenland GRL native 7816
North America Mexico MEX native 7816
North America USA USA native 7816

Table 2: Possible in 6 countries/islands (stray, questionable)
Continent Country Occurrence Main Ref.
Europe Ireland IRL stray 7816
Asia Japan JPN stray 7816
Asia Korea (North) PRK stray 7816
Asia Korea (South) KOR stray 7816
Europe UK GBR stray 7816
Europe UK Engld Wal GBE stray 7816

Table 4: Reported from 10 countries/islands.
Continent Country Occurrence Main Ref.
North America Canada CAN native 7816
North America Greenland GRL native 7816
Europe Ireland IRL stray 7816
Asia Japan JPN stray 7816
Asia Korea (North) PRK stray 7816
Asia Korea (South) KOR stray 7816
North America Mexico MEX native 7816
Europe UK GBR stray 7816
Europe UK Engld Wal GBE stray 7816
North America USA USA native 7816
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The map in this page was supported by BioFresh that has received funding from the
European Union's Seventh Programme for research, technological development and demonstration under grant agreement No 226874