Ready Female (Not Mating)

Hi fellow breeders,

i have 2 pairs of budgies and 1 pair is going fine but the in the other pair only the male is intresed in the female but the female wont resond.

She is in breeding mood but she just isent intrested in the box or the male.

The weirdthing is that on the first day that i brought her she was intrested in the male but after that day she doesn't want to breed or do anything

Thanks...