noun
black-browed reed warbler
A small migratory bird (Acrocephalus bistrigiceps) found in East Asia, known for its loud song in reed beds.
春になると、コヨシキリが葦原でさえずり始める。
In spring, black-browed reed warblers start singing in the reed beds.
Oriental reed warbler, a larger species with a similar habitat and song.
The name combines 小 (ko, 'small') with 葦切 (yoshikiri, 'reed warbler'), referring to its smaller size compared to the Oriental reed warbler.