coal tit
A small passerine bird (Parus ater, now often Periparus ater). The name is usually written in katakana as ヒガラ.
The coal tit is a small bird often seen in coniferous forests.
The name ヒガラ is of uncertain origin. It may be related to 日 (hi, 'sun') and 雀 (kara, 'small bird'), but the exact derivation is unclear.