cockatiel abandoning thier chicks
hello
i have a pair of lutino cockatiels they always look after thier eggs well and after hatching they dont feed thier chicks well and are showing less interest in thier own chicks. This happens always and i find it difficult to breed them.They last time fed thier chicks for about 4 days and the next day i found 2 of thier chicks dead. what do you think the reason is and how can i stop this bad behaviour.