Why does my male Rosella attack the female?

Male Rosellas may attack females due to territorial behavior, especially during breeding season when they feel the need to defend their space. It can also stem from stress, competition for resources, or an imbalance in their pairing dynamics. If the male perceives the female as a threat or if they are not properly bonded, aggression can result. It's important to monitor their interactions and provide a safe environment or consider separating them if the aggression continues.