Start: Begin by speaking to Charlie the zoo keeper, in East Ardougne Zoo.
Skills: Level 27 Hunter.
Quests: None!
What You Need: Swamp tar, Yellow dye (or 2 onions and 5gp to make it), 10 giant feathers (quest obtained), 50gp, Odd Bird feed (quest obtained).
Recommended Items: Varrock teleport, Ardougne teleport, Spirit Tree teleport system or Ring of Dueling (to save walking time).
Recommended Skills: 25 Agility.
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Getting Started
You begin the quest by talking to Charlie, the zoo keeper in Ardougne.
He will say he is busy, so ask if you can help him. He explains that there was a delivery of a ferret to his zoo. But when the ferret got there, it escaped! And so now the zoo has no new attraction. He mentions a man named Nickolaus, who has agreed to help get another ferret. But they have not heard from him for a while. Your task is to find him. Agree to help. He suggests the mountains, west of the Gnome Stronghold, as a good place to start looking as that's where the ferrets live.
Now walk to west of the Gnome Stronghold, and you should see a path leading up the mountains. Follow it to the top and you will see a agility shortcut. If you have 25 agility, you can go down this shortcut. You can see the path from the map below.
If you do not have 25 agility, then you must walk around the mountain instead. You can follow the blue path shown in the map below.
There you should find a camp, with lots of ferrets that Charlie told you about nearby. Note that the tracks there have nothing to do with the quest.
Now, inspect the books. You will find a bird book. Read it and a Metal Feather will fall out. The book contains information on all the birds used in Hunter skill, as well as information on giant eagles.
Next, go up the path in the mountains that those with 25+ Agility followed. You should see a rocky outcrop.
When you inspect it, you get this message.
Now use that feather you got from the book on the outcrop. It will now become a cave entrance! Enter the cave. Start walking down the path and you will see a journal on the ground.
Read the journal and you will find out about the author and what they have been doing. It turns out that they, too, are not safe from Random Events.
Now walk to the south path until you get a small cut scene. There you will have found Nickolaus.
He will tell you how he has just found the nest of a giant eagle. Tell him that Charlie sent you. He doesn't seem to think that getting a ferret is as important as the giant nest. When you offer to take the ferret for him, he explains all his equipment is at the camp and as he is trapped, he can't go get it. Offer to help. His plan is to trick the eagle into thinking he is one of them, in order to escape. He requires a disguise. He says you need a disguise as well.
Now collect 10 of the nearby feathers, then leave the way you came in. The next stop is the Fancy Dress Shop. This can be found in Varrock.
Speak to the owner, and tell him you want some bird outfits. He says he has none of those in stock. But he offers to make you one. He says you need 10 giant feathers, yellow dye and some swamp tar.
Yellow Dye & Swamp Tar: First, a visit to Lumbridge is suggested. You can use the Lumbridge Home Teleport. Go to the Lumbridge swamps, found to the north-west of Lumbridge, and collect a swamp tar. Next, if you do not have some yellow dye, head to Fred's farm (just west of the sheep pen). There is a respawn of onions there. You can also get onions from Rimmington. Collect 2 of these and visit Aggie the witch in Draynor Village. Give her the onions and 5gp and she will give you the dye. Or, you can buy yellow dye for 6gp in Lletya, which is even faster than going to Fred's house as you can use an Elf Teleportation Crystal to get there faster (you must start Mourning's End Part 1 to access the city).
Now head back to the Fancy Dress Shop, and give these items to the owner. He says the costumes will cost you 50gp. Pay him the money and you will receive 2 eagle capes and 2 fake beaks.
The cape and beak give you no attack or defense stats. Now you make your way back to the cave. You can teleport to Ardougne to save time, or use the Spirit Tree teleport systems (nearest tree is just by the castle), to save walking time.
Put your costume on, and go back to where you were talking to Nickolaus before, and shout over to him. At first he will mistake you as an eagle! Reassure him your not going to eat him. Now you need to bring the costume over to him.
You will notice, if you follow the path to him, that there is a stone door. But when you click on it, you get this:
So you need to find the 3 feathers to open the door.
Now head on north, from the entrance of the cave, and enter the tunnel. Inside you should see a birdseed holder. Take some birdseed. It is suggested that you take quite a lot in case you make mistakes. If you make a mistake, then use the reset lever, which is just outside the entrance to this puzzle.
For reference, here's a map of the dungeon used in this part of the quest:
Part 1: Follow this path:
Now pull down the lever that is there. You hear something opening.
Part 2: Now follow this path:
Use the birdseed with the birdseed feeder to the south, and make that statue move forward. Then use more birdseed with the other birdseed feeder nearby to make that one move. It should look like this:
Now walk to the far south-east corner, and pull the lever. Another message appears about hearing something open.
Next, you go back and pull the first lever (part 1 lever) again. And while you are there, use some birdseed with the birdseed feeder nearby.