I have a problem i have two pairs of cockatiels in different cage the first one breed three times untill now but never the male give attention to the eggs and the chicks.The second one just the female lay eggs by her self the male i dont now he dont care,dont like i dont know.Now i make one big outdoor cage i put them all together before 2 days the second male that never breed with a female he run all the time the female of the other pair and also attack the other male all the time and bites him.its better to put another one female inside?