tickbird

例句：

1. 1. The robin was singing a beautiful song in the park.
   知更鸟在公园里唱着一首美妙的歌曲。
2. 2. The thorax of the bird is covered in feathers.
   这只鸟的胸部覆盖着羽毛。
3. 3. The robin is known for its bright red breast feathers.
   知更鸟以其鲜艳的红色胸脯羽毛而闻名。