Last year we bought a OEGB game roo and two hens. Well, the folks decided to turn them into the big chickens pen. One of the big roos started picking on the OEGB roo, who ran like lightning between the big roo's legs and jumped onto the big roo's back, holding on with his beak, clawing with his feet, and beating with his wings. Once the big roo got away, he stayed away! These guys may be little, but they have big hearts!
Edited for clarity.