From Grimm wiki

Fuchsbau

The Fuchsbau is a vulpine Wesen species known for their cunning, agility, and frequent involvement in the underworld of Portland.

Biology and Characteristics

The Fuchsbau are fox-like Wesen who possess a keen sense of smell and high levels of intelligence. When they woge, they take on a vulpine appearance characterised by pointed ears, sharp teeth, and fur. They are generally considered to be somewhat timid and prone to nervous behaviour, often relying on their quick wits and ability to blend into human society rather than brute physical strength.