Meet Avian Shadows ;3

Avian is a mare of high class and fancy living, who also just so happens to be a master thief!

Born into poverty, she was always jealous of those who were richer then her, and she had to resort to sealing in order to get ahead in life. She started off small by pickpocketing passing ponies and from store stalls, but soon she was able to go bigger, robbing houses and more wealthier targets. Avian was aided with this by the help of local birds like crows, ravens and magpies. She was able to care and train them, and they soon helped her in return by being her trained pets, swooping down and snatching items.

Skilled acrobat and stealthy, she is aided also by the bell necklace on her neck, allowing her to summon her birds to her at will, along with having magical effects when used a certain way (such as making a nearby pony fall asleep).

She lives in her own fancy manor, where she has a secret "nest egg" of all the valuable items she has stolen in her career. Despite her profession, she is actually really polite and friendly, especially amongst those less fortunate.