Big Chompy Bird Hunting

Buying wolf bone arrowheads or ogre arrows from the Grand Exchange will not work.

Chop down two Achey Trees.

Craft ogre arrow shafts from the logs.

Use feathers on the ogre arrow shafts.

Obtain some wolf bones. There are some wolves just south-west of Rantz, by the swamp.

Craft wolf bone arrowheads from the wolf bones.

Be careful not to bury the bones.

Use the wolf bone arrowheads on the shafts.

Use 6 ogre arrows on Rantz.

Ask Rantz all possible questions.

Enter the cave north of Rantz.

Unlock the Locked Ogre chest in the north-west corner, then search it to receive ogre bellows.

Exit the cave and run a short distance south-west to the swamp.

At the swamp, fill bellows via the swamp bubbles, then bloat 3 nearby swamp toads for 3 bloated toads.

Remove any Armour/Augmented Armour this will stop you from killing Chompy

Talk to Rantz.

Drop a bloated toad where the arrow points and wait for a chompy to appear.

You may need to drop more toads if the bird doesn't spawn.

Talk to Rantz after the chompy appears.

Wait until Rantz has fired his bow and missed the bird, then talk to him.

Convince him to let you try shooting the bird instead. He'll give you an ogre bow.

Place another toad in the clearing.

Alternatively, you can kill the same chompy bird, if it has not left.

Kill the chompy bird that appears with the ogre bow.

Pluck the carcass and take the raw chompy.

Talk to Rantz. Take note of the specific ingredient he wants on the chompy

Go back into the cave and talk to Fycie and Bugs. Take note of the specific ingredients they want on the chompy, all are possible but not necessarily needed.

Obtain the ingredients that they ask for and use the raw chompy on the spit-roast north of Rantz.

In case you forgot the ingredients, using the raw chompy on the spit-roast will list them out.

Talk to Rantz.

Quest complete!