noun
ruff; reeve
A migratory sandpiper species (Philomachus pugnax). The male is called 'ruff' and the female 'reeve' in English. In Japanese, the name literally means 'collar-wrapped snipe', referring to the male's ornamental neck feathers.
春になると、エリマキシギが繁殖地へ渡ってくる。
In spring, ruffs migrate to their breeding grounds.
オスのエリマキシギは、首の周りに派手な飾り羽がある。
The male ruff has showy ornamental feathers around its neck.
シギ is the general term for sandpipers and snipes. エリマキシギ is a specific species within that group.
The name エリマキシギ is a compound of 襟巻き (erimaki, 'muffler' or 'collar wrap') and シギ (shigi, 'snipe/sandpiper'), describing the male's distinctive ruff of feathers around the neck during the breeding season.