That is the Andras Hat. If you're an Aran, Dawn Warrior or Warrior you can get it by doing the chain of quests that probably start with Dances With Balrog.
YES!
Yes.
its VALEFOR and you have to kill it in the dark portal before you are level 40
you hit the owl statue
Only thieves can receive the Valefor hat. You obtain it after completing the quest, 'Catch Valefor!'
Those were available for a Mardi Gras event, I'm not sure if they will be available every year.
They were made of bones,feathers and other body parts of animals, but basically the base is made of wood. The Inuit believed that the characteristic of the animal which is designed in the mask, will be transferred to the user of the mask. So example if someone wears a mask which looks like an owl with feathers attached to it, the Inuit believed that the wisdom of the owl would be transferred to the user.
There's Soren, a Barn owl, Gylfie, an Elf owl, Digger, a Burrowing owl, Twilight, a Great gray owl, Metal Beak, a Barn owl with a metal mask, Nyra, a Barn owl, Kludd, a Barn owl, Noctus, Barn owl and father to Eglantine, Soren and Kludd, Marella, Barn owl and mother to Eglantine, Soren and Kludd, Boron, snowy owl and king of the Ga'hoole tree, Barran, snowy owl and queen of the Ga'hoole tree, Ezylryb or Lyze of Kiel, whiskered screech owl and leader of the guardians, Otulissa, spotted owl and snotty, chatterbox owl in the books, Primrose, pygmy owl, and I don't know the rest. But these might do.
No you can only save by playing the song of time or Talking to one of the Owl Statues
Going through the story, you will encounter it in many places, most notably Snowpeak Temple.
Maplestory.
MapleStory happened in 2003.