noun
common shelduck
A species of waterfowl (Tadorna tadorna). The name is usually written in katakana.
ツクシガモは海岸近くの干潟でよく見られる。
Common shelducks are often seen on tidal flats near the coast.
The name likely combines 筑紫 (Tsukushi, an old name for Kyushu) and 鴨 (kamo, 'duck'), but the exact derivation is uncertain.