Calliope hummingbird
A specific species of hummingbird (Selasphorus calliope). The name is usually written in katakana.
The Calliope hummingbird is one of the smallest birds in North America.
Usually written in katakana; usually written in kana.
Kanji spelling; very rare and mostly seen in older or specialized texts.
Compound of 姫 (hime, 'princess; small and delicate') + 蜂鳥 (hachidori, 'hummingbird'), literally 'princess hummingbird'. The exact origin of the name is uncertain, but it likely refers to the bird's small size.