When they encounter a mirror, they see their reflection and may interpret it as finding a new friend. This behavior stems from their instinct to socialize and form connections.
It's important to note that while many budgies enjoy the company of their mirror reflection, some individuals can become overly attached to their "mirror friend," especially if the mirror is placed within their cage. This attachment is a natural response to their social instincts, and budgie owners need to monitor their pet's behavior to ensure a healthy balance.