钩嘴圆尾鹱

gōu zuǐ yuán wěi hù

(bird species of China) Tahiti petrel (Pseudobulweria rostrata)

gōu

variant of 鉤|钩[gou1]

zuǐ

mouth

yuán

circle

wěi

tail

(bound form) bird of the Procellariidae family, which includes shearwaters, gadfly petrels etc