Field Marshal Windbag was a talking parrot, originally owned by Zoltan Chivay. They were inseparable and everywhere the dwarf went, Field Marshal Windbag accompanied him, perched on the dwarf's shoulder. The parrot's vocabulary consisted mainly of some rather salty phrases.
After the war, Zoltan sold the bird to the gnome, Percival Schuttenbach. After the Nilfgaard Wars, Percival opened a jewelery workshop in Novigrad, where he used the parrot as a living advertisement. In Polish, the parrot's cry was described as "Brrrylanty! Brrrylanty!" which sounds just like "Brilliants! Brilliants!" which would certainly be an improvement in its vocabulary.