The Belgian Sheepdog is the long-coated, black version of what some people consider one breed, the Belgian Shepherd (or Continental Shepherd). Like all the members of this family, the Belgian Sheepdog is an active and intense companion, as well-suited for police work as for herding chores.
A bird may bite out of fear or aggression. They may be protecting their territory or asserting their dominance. Screaming or loud vocalization is a natural way for wild parrots and other birds to communicate with each other in their flock environments. They will also scream if they are alarmed.