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Project Noah Nature School
Uria aalge
Guillemots are 38-45 cm in size. They nest in colonies on cliff edges. Thie eggs are pear-shaped so they don´t roll off (and I wonder if what is seen on the back of several birds in the third picture are eggs!). The bridled form has a white ring round the eye, which looks like a pair of spectacles (you can see some of them like this if you look closely). The spectacles like form is not a distinct subspecies, but a polymorphism that becomes more common the farther north the birds breed.
In Sunburgh Head, Lerwick (Shetland Islands) you can see huge colonies of them.
Spotted on Jun 16, 2013
Submitted on Jul 28, 2013
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