I would expect, though, that Mongolian Gull would be a big number migrant through that area and that your big gulls would be that species.

• 你的1；2；3看起来像是1.；红嘴鸥(尽管有误导的脚部颜色；它有"带头巾的"鸥(译注:如棕头鸥；红嘴鸥；黑嘴鸥等)其中一种的耳部覆羽斑点);2