A detailed pro forma schedule of financial activity, such as an advertising budget, a sales budget, or a capital budget. Budget A plan for a person or company's expenditures.
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.
Some female cockatiels also lay eggs without fertilization, much as those of the chicken species used for food production. A cockatiel is getting ready to lay eggs when she makes her mating call, short chirps repeated rapidly. The bird will also get low to the ground, slightly spread her wings, and bounce as she chirps. Once the cockatiel has laid her eggs she will believe the egg holds a bird, therefore she will sit on it and protect it for about a week. Even the most even-tempered hen will attack to protect her egg. After about a week the cockatiel will realize the egg is empty and stop sitting on it.