I had that thought too. My first caique Greta was a year old and I wanted to get another[not for breeding]I was going to get a WBC but couldnt resist this blk hd one.So we got Sammer .I have separate cages but thought I would start having them out together and see how it went.They would preen each other ,then Greta would get to rough[she would bite him].Their cages are next to each other[they like that!

Its cute they mirror each other,they eat at the same time,play with toys and sleep facing each other.Also it has not changed my relationship at all,I think the only way I would keep them in the same cage is if they were both baby cagemates.Hey you could get both

That would be fun.Though all situtions can be different.I think WBC are more laid back and the blk hds are devils

As for the breeding question .A male and Female can be together just no nesting materials and watch how you handle them during the season.I think he would like a friend.
