单词little-gull
网络: 小鸥；叉尾鸥；小海鸠
Though it"s a very poor photo, only first summer Little Gull can show that wing pattern. It appears to be dark - headed too.
虽然是张很不清楚的相片，只有一龄夏羽小鸥的翼是那种样式。同时它头部看起来是黑色的。