ひたすら鳥を眺める動画/その12 2018.06.14 動画 【作業用BGV】鳥のさえずり 鳥の鳴き声は単純作業や読書にピッタリです。 https://www.youtube.com/watch?v=hj5jLfX-1dAVideo can’t be loaded because JavaScript is disabled: Videos for Cats – Birds Sounds in The December Woods (https://www.youtube.com/watch?v=hj5jLfX-1dA) https://www.youtube.com/watch?v=AedAI5HNru4Video can’t be loaded because JavaScript is disabled: Cat TV : Birds Chirping and Squirrel Fun (https://www.youtube.com/watch?v=AedAI5HNru4)