This was not the original perch the snake was on. They intentionally shifted it to an open branch as shown for an 'easier photo'. During which, they were poking it just to get it into a position they want. As shown, the pit viper was tense(ready to strike position). This video only shows part of the upteen times they physically disturb/poke it. This group of PRC ''Nature Photographers" (was told about 8 of them) intentionally threw this poor juvenile into the air, deeper into the forest. It was wise of my jogger friend to not confront them as he was alone.