Because they are probably a mated pair, and she is in charge.
No. A color of a budgie has nothing to do with the way they play but if you had a boy and a girl budgie, the boy would be more easier to teach and more playful as the female budgie tends to bite a lot harder than the male budgie I have over 20 budgies and I got to say the male budgie gets along with each better than the female budgies who will fight for space Ihope this answers your Question.
A female budgie is called a "hen".
The girl budgie would attack the new boy budgie and not the old girl budgie because she is used to the other girl budgie and is not familiar to the new boy budgie.
probably because he/she is scared.
A yellow budgie is more likely to be a female.
About twice as hard as a Budgie.
You have a female budgie, male budgie's do not lay eggs.
The answer is to avoid doing this. If you put a male budgie and a female budgie together, they will mate.
A male budgie's beak, or rather, the cere above the beak, does not turn brown. A mature male budgie has a blue cere. If your budgie's cere has turned brown, you have a female that is ready to breed.
whatever color you dye them
Male budgies are more friendly, and as long as there isn't a female to fight for, they should be all right. Though some things depend on their personalities.
sexing a budgie is relatively easy. if the bird has a blue cere its a male if it has a pink or brown cere its a female