I get it now!
The raven form makes sense, due to Rudo's ancestor being called Canis Surbenec...
Canis means dog/cainine animals in latin, and in nature, wild dog/wolf packs are usually accompinied by ravens or crows, using them as scouts. They signal where the prey is, so in return, the hunting pack leaves some of the remains behind as a guarante for further transactions like this.
We already knew the info broker had a close relation with Canis, but things gone in a bad way... His real form being a raven/crow strengthens this connection on a metaphorical point of view...
