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black guillemot
noun
- a common guillemot, Cepphus grylle : its summer plumage is black with white wing patches and its winter plumage white with greyish wings
Example Sentences
There is good news for some of the seabirds that breed in the UK, with the shag moving from the red list to the amber and the black guillemot from the amber to the green.
Ornithologist George Divoky who has been studying the black guillemots of Cooper Island for 45 years noticed something different this year.
In the years that followed, seabirds like the black guillemot started arriving earlier, laying eggs earlier and not surviving as well, he said, blaming warming.
Since 1975, on a barrier island near Barrow, the ornithologist George Divoky has tended a pioneer nesting colony of black guillemots.
George Divoky and others have been tracking how early the black guillemot bird lays its first egg on far north Cooper Islands.
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