渡り鳥

1. Origins, structure, and basic meaning

• Structure: 渡り鳥(わたりどり) means a migratory bird that moves between places with the seasons.
• Basic usage: It is used for birds returning seasonally or flocks being observed.

2. Common pitfalls and similar expressions

• The changed reading of 鳥
  • 鳥(とり) becomes voiced in 渡り鳥, where it is read どり.
• 群れ for a flock
  • In 渡り鳥の群れ, 群れ(むれ) means a group or flock of birds.