The New Mother To Be?

Malutka, my female budgie of around 4 to 6 months old, has recently been inspecting the nest box. In the wild, a budgerigar female can start reproducing at around 3 months old. Though this is the same age a captive budgie can start reproducing, it would be much safer for any female budgie if the budgie owner let them breed at 12 to 18 months old. Malutka is the youngest budgie in her flock of four others; Calypso, Skylar, Colada, and Flippy. Here are her coloration and striping pattern mutations: COLORATION MUTATIONS Base Color: Yellow-based Dark Factor: No dark factor (light green variety) STRIPING PATTERN MUTATIONS Opaline _______________________________________________ Malutka is behaving quite like a mother budgie should right before she lays the first egg. I have noticed that Malutka has been entering the nest box in the early morning hours. She remains inside of the nest box for most of the day, and defends the area by pecking at intruders or preforming loud screaming noises to anyone that gets too close.