摘 要: | 剖检内含物均内含食物均种名数重*(g)重(g)主要食物成分斑头雁Anser indicus219.073.98苔藓、水生植物叶片赤麻鸭Tadrna ferruginea23.532.84水蝇幼;植物叶片白眼潜鸭Aythya nyroca15.135.13龙虱幼等普通秋沙鸭Mergus merganser comatus13.341.34植物叶片毛脚鵟Buteo lagopus lagopus246.1246.12鼠金眶鵟Charadrius dupius curonicus60.070.07水龟虫、虻幼白领鵟C.a.alexandrinus10.300.07蚁、甲虫蒙古沙鵟Charadrius mongolus50.330.31金龟甲、蚁、蛾幼;草叶红脚鹬Tringa totanus totanus30.370.33龙虱幼、伪步甲棕头鸥Larus brunnicep…
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