The overall distribution of this species can be assessed, and
specific locations where birds have been spotted can be found,
based on individual sighting reports submitted by birdwatchers to
ebird.org
.
The global distribution of the Great Grey Shrike ("Northern
Shrike") is available HERE
.
There are in total 9 races of Great Grey Shrikes, which can
be collated into three groups, a Western Eurasian group, an
Eastern Eurasian group and a North-American group (for
classification details see, e.g. Wikipedia
).
The Western Eurasian group comprises races "excubitor",
"homeyeri" and "leucopterus".
Races "siberius", "bianchii", "mollis" and "funereus"
form part of the East Eurasian Group, while races
"borealis" (the Great American Shrike) and "invictus" are members of
the North-American Group.
Race
"koenigi" is found only on the Canary Islands.
Most races of Great Grey Shrikes are migratory. Sedentary
populations are found only in central to eastern Europe and
mid-latitude western Siberia (race "excubitor")
and in near-coastal southern Alaska (race "invictus").
The migratory populations breed in the sub-arctic regions of
all northern continents, roughly between 55 and 70 degrees
geographic latitude, across the entire breadth of the continents.
They spend the northern winters in the moderate climate zone,
between roughly 30 and 50 degrees latitude, again spanning
the entire breadth of the land masses in the northern
hemisphere.
In Arabia, Great Grey Shrikes, race
"aucheri",
are usually found during their passage between Africa and Asia.
We spotted them on the North coast of Oman.