关文
passport; travel papers
冠纹柳莺
(bird species of China) Claudia's leaf warbler (Phylloscopus claudiae)
华南冠纹柳莺
(bird species of China) Hartert's leaf warbler (Phylloscopus goodsoni)
西南冠纹柳莺
(bird species of China) Blyth's leaf warbler (Phylloscopus reguloides)