Valentine trained the birds to be watchful and vicious. They were capable of ferociously attacking their targets, and were intelligent enough to understand and follow orders. Some time after the Uprising, Hodge took Hugin with him to New York while Munin's fate was left unsaid.
- Hugin and Munin ("thought" and "memory") were named after Odin's ravens from Norse mythology. Much like Hugin and Munin of the myths, who flew over Midgard and reported back information to Odin, Valentine's birds were trained to do his bidding.
- City of Bones (first and only mention)