Hedwig is Harry's dear owl. In Harry Potter and the Sorcerer's Stone, Hagrid purchases the snowy white owl for Harry as an eleventh birthday present – the first and best present Harry's ever had. She grew to be so close to him through his years at Hogwarts and his troublesome summers with his aunt, uncle and cousin.
This Hedwig Feather necklace is for Hedwig (and for all of us!).