As I've said many times when you put a male and a female together, they may or may not mate. There is really nothing we can do to encourage matting other than perhaps placing a breeding box in there cage. We have a whiteface male and a female cinnamon pearl whiteface that bonded early on but for the longest time showed no interest in having kids! This has changed over the coarse of the last few weeks and they started mating! The female laid her first egg yesterday!!! I guess what I'm saying here is we ( as owners ) just need to be patient and let nature take it's coarse.