I have a 6 month old lovebird and 2 4yr old finches. Their cages are right next to each other much of the time, when my lovey is out she spends all her time trying to open the door to their cage. Today I opened the door and she went in, all went well they all checked each other out for a bit and then shared some millet. Are lovebirds normally friendly with other birds? Should I continue allowing visits?