02 929 早起去爬山 (by 一起追星去(派星傳媒))
This is a band called 929, with Wu Zhining, Dadado Huang Jie, Russy Ing aka Dudu. They have a couple of releases, and they get together once in a while to do some shows, besides their individual solo/band activities.
The song is 早起去爬山 (Get Up Early To Go Hiking), and it features amazing bird calls/whistles/sound effects from the bass player 嘟嘟. And Dadado Huang solos on recorder. =D
There are more clips to see from this set at 2013 Taiwan Masago Music Festival, which was supposed to take place in mid-July, but postponed until this weekend because of the Typhoon.