First warbler Yellow-browed, the dark bases to the secondaries and black-centred greater coverts leave few other options.
第一只是黄眉柳莺，次级飞羽暗色的基部及以黑色为中心的大覆羽留下的选择很少。
A yellow and olive warbler (Oporornis philadelphia) of eastern North America, having a bluish gray hood set off by a black band on its breast.
一种分布于北美东部地区的黄色和橄榄色的林莺（哀林莺） ，长有淡蓝灰色的羽冠，胸口衬有黑条纹。
European woodland warbler with dull yellow plumage.
有暗黄色羽毛的欧洲森林地区的莺。
European woodland warbler with dull yellow plumage.
有暗黄色羽毛的欧洲森林地区的莺。
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