I have two pionus parrots that came from a poor environment. As a result they are not at all tame and biters. One talks a great deal, the other not at all. The talker is the aggressive one - demanding all the attention. They get along quite well - even grooming each other at times. I have no idea what sex they are, and they have never laid an egg. Their personalities are so different. We somehow feel they might male and female. Would it make sense to put a nesting box in the cage to see what happens?