genus Rissa

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Noun1.genus Rissa - a genus of Laridaegenus Rissa - a genus of Laridae      
bird genus - a genus of birds
family Laridae, Laridae - gull family: gulls and terns
kittiwake - small pearl-grey gull of northern regions; nests on cliffs and has a rudimentary hind toe
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References in periodicals archive ?
Within Laridae, the microscopic feather characters of downy barbs of birds within the genus Rissa (kittiwakes) and Stercorarius (skuas and jaegers) differ from the Larus ("white-headed" gulls) and could be ruled out as possible species used in the making of the pillow.