red phalarope; grey phalarope
A migratory shorebird (Phalaropus lobatus). In breeding plumage the female is more colorful; non-breeding birds are grey and white. The name ハイイロヒレアシシギ refers to the grey non-breeding plumage.
The red phalarope breeds in the Arctic.
In winter plumage, the red phalarope becomes grey and white.
Katakana spelling is standard for this bird name; the kanji form 灰色鰭足鷸 is rare and mainly used in ornithological contexts.
Kanji spelling; very rare and mostly found in specialized literature.
Compound of 灰色 (haiiro, 'grey') + 鰭足 (hireashi, 'lobed feet') + 鷸 (shigi, 'sandpiper'). The name describes the grey non-breeding plumage and lobed toes characteristic of phalaropes.