Forecasting methods can help estimate many such future aspects of a business operation. The goal of forecasting is to come as close to possible to an accurate picture of the future. But, as with other forms of fortune telling, it can never be fully accurate.
The cere is the fleshy band of tissue containing the nares. Young budgies of all colors start out with a pale bluish or light tan cere, depending on the budgieâs feather color. As they reach sexual maturity, the cere color will usually change.
At around one year of age, the cere, or pink fleshy nostril band above the beak, changes color in parakeets. This is normal and expected. In female parakeets, it changes to tan, pale blue, white or brown. In males, it changes to a bright, vivid blue, except for a few color varieties in which it changes to bright purple or remains pink. This color change helps to easily tell the difference between mature males and females.