Brown Owl is a purchasable pet at Eeylops Owl Emporium & Magical Menagerie . It is sold at 10 Galleons. When bought the brown owl becomes your icon.
"Their binocular vision and superb directional hearing make brown owls great night hunters - rodents and voles beware."
Pottermore PlayStation Home
On Pottermore PlayStation Home, the Brown Owl is one of the four owls available for purchase at Eeylops Owl Emporium. It must be purchased with real money. It costs £2.39.
When purchased, it will fly alongside the player's avatar in the game.
A Brown Owl is also sitting outside of Eeylops, looking at passers-by.
The Brown Owl is also the 4th Pottermore Card in the Pets category.