Question: how to tell the difference between a male and female cockatiel?
Answer: For example, the check patches on the male grey cockatiel are brighter orange than on the female [source: Bird Channel]. Parakeets and budgies The color of the cere, which is the bump just above the nose, differs between the genders. The adult male has a blue cere, while the adult female has a pinkish-brown cere.