Here is the full list of all 10 Chook Sosig: Walk the Plank achievements.
Became the new sea deity
You found all the hidden images
You showed everyone the parrot, even if they didn't want to see him.
You got the previously haunted treasure
You upvoted Hebble's photo
You spotted the kakapo!
Listened to all tracks on the radio.
Set all burnables on fire
You almost wiped an entire island off the map.
You met Clive the fish.