2. A common seagull (Larus argentatus) of the Northern Hemisphere having gray and white plumage with black wing tips.
北半球常见的一种海鸥(银鸥),有灰色和白色羽毛并有黑色翼尖。
3. This article shows the characteristics of foraging and nesting habitats for Saunders Gull ( Larus saunders i ) in Yancheng Biosphere Reserve.
对江苏盐城黑嘴鸥繁殖期觅食地和营巢地及其主要特征进行了调查。