Hi, I was wondering if my budgies are breed I have a hen and a cock in the same cage with a nest box they are bonded as they feed and preen each other the hen has recently started going into the nest box and picked at the edge of the opening at the moment she has a nutty brown cere and he has a light blue cere he is mainly White with light blue on his chest and back if this make a difference (pigments maybe) he doesn't sing much the odd chirp I was wondering if the hen is in the breeding mood and if the cock isn't and what happens in the situation and if they will breed soon. Also if it matters I also have another cock and hen in the same cage does this make a difference?