Assertion: black legged kittiwake | /r/HasProperty | r. tridactyla
Facets:
Source sentences:
text: Thekittiwakes (genus Rissa) are two closely related seabird species in the gull family Laridae, the Black-legged Kittiwake (R. tridactyla) and the Red-legged Kittiwake (R. brevirostris).