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Cockatiels are picky when choosing a mate and form strong bonds that last for life. Breeding usually occurs following a heavy rain, when food will be plentiful for the chicks. During the rain, many of the birds will sit with their tails and wings outstretched to bathe.
Invariably, a female cockatiel will breed until she is 8 to 10 years old, while a male cockatiel stays fertile until he is around 12 years to 14 years of age. However, in order for a cockatiel pair to breed successfully in captivity, it has to be healthy.