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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.
Parasitic Jaeger
Jaegers are kleptoparasites, obtaining much of their food by stealing it from other birds. This species sometimes goes under the name, "Arctic Skua." It is highly variable, occurring in dark, light and intermediate morphs. This is an adult light morph in breeding plumage. In the North Atlantic, light morphs predominate at higher latitudes. In Svalbard, the dark morph is extremely rare comprising less than 1% of the population while in southern Norway and the Baltic Sea, over 95% are dark. The genetic basis of the polymorphism is more complex than previously believed. It involves three different linked non-synonymous mutations at the plumage color locus rather than just the single mutation previously known (Janssen & Mundy 2013).
Location
Longyearbyen, Svalbard
Date taken
21 July 2018
Scientific name
Stercorarius parasiticus
Equipment used
Canon PowerShot SX50 HS
Staff member
Opus Editor
Supporter
They're scary brutes really, but I just love watching them!

A super picture you've taken of this skua Joe - excellent work here laddie.
 

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Category
Britain & Europe
Added by
jmorlan
Date added
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138
Comment count
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