Esempi
In the foreground is the nene , or Hawaiian goose.
Despite its similarities to the Canada goose, the nene is a true Hawaiian down to its toes.
The researchers' finding suggests that the nene and several other species of Hawaiian geese now extinct branched off from a population of Canada geese and colonized the tropical paradise about half a million years ago.
Ground-nesting birds such as the endangered nene or Hawaiian goose and Hawaiian dark-rumped petrel (Pterodroma phaeopygia sandwichensis) are particularly vulnerable.
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