Your cockatiels should be at least a year old before you start breeding them to prevent ill offspring.
Swadesh become a father at age 43.
Cockatiel's are very difficult to age. You can only be accurate about their age if you've had the bird from a baby. The only way a cockatiel can be aged is as a juvenile, adult or senior.
The leg band number NZcs6650 typically indicates that your cockatiel was bred in New Zealand, but it doesn't provide specific information about its age. Breeder leg bands often include a year code, but it may not be present in this case. To determine your cockatiel's age, you could consult the breeder or check with a veterinarian who may help estimate the age based on physical characteristics.
Cockatiels do not become aggressive unless they are treated badly.
Just like with dogs they become a mix usually they are like white and then have grey spotches. :D I hope that helps ;)
I have five of them - it is typically through age and shedding, nothing more.
It's not recommended to have a cockatiel in your house with a child who's age is less than 5. Maybe you should wait a few more years.
It varies from bird to bird but after a year the bird should have reached maturity.
in the year 1815 he was 25 and was ordained a priest
She learned to shoot before the age of six from her father.
He became a ruler at age 9 a few years after his father died
The cockatiel is a type of Australian parrot.