ひたすら鳥を眺める動画/その13 2018.06.16 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=XOpDIGgePCMVideo can’t be loaded because JavaScript is disabled: TV For Cats : The Ultimate Cat TV Video : ONE HOUR (https://www.youtube.com/watch?v=XOpDIGgePCM) https://www.youtube.com/watch?v=VawOzm342noVideo can’t be loaded because JavaScript is disabled: Bird Sounds in An English Forest : ONE HOUR – 鳥の音 (https://www.youtube.com/watch?v=VawOzm342no)