Winter-talent isn't really a talent. It is the nickname given to all winter fairies. They are in charge of everything relating to wintertime, be it ice, frost, or even winter animals. In the movies, their job is to bring winter to the Mainland. They live in the Winter Woods, and in Secret of the Wings it's revealed that they cannot visit the warmer areas of Pixie Hollow lest their wings melt and break.
These are the winter talents:
Appearance & Wardrobe
Winter fairies are seen wearing cool colors, such as white and pale blues, turquoises, and indigos. Outfits vary depending upon talent.