pale thrush
A migratory thrush species (Turdus pallidus) found in East Asia. In Japanese, the name literally means 'white belly'.
I spotted a pale thrush in the park.
Katakana spelling is common for bird names and is the usual written form for this species.
Kanji spelling is used but less common; usually written in kana.
From 白 (しろ, 'white') + 腹 (はら, 'belly'), referring to the bird's pale underparts.