crested kingfisher
A species of kingfisher (Megaceryle lugubris) found in Japan and East Asia, often near mountain streams.
I spotted a crested kingfisher at the mountain stream.
Common kingfisher (Alcedo atthis), smaller and more colorful than the crested kingfisher.
Katakana spelling is common for this bird name; usually written in kana.
Kanji spelling using 翡翠 (kingfisher) with 山 (mountain); rare and literary.
Alternate kanji spelling using 魚狗 (kingfisher); very rare.
From 山 (yama, 'mountain') + セミ (semi, 'kingfisher'). The kanji 翡翠 and 魚狗 are both used for kingfisher species.