As was stated before you can end up with more of one sex than another. Gald it worked out well for you with more cocks! Cocks make way better pets than hens.
One year my old show partner ended up producing 26 cocks and 3 hens. NOT good when you are breeding for exhibition it REALLY puts a crimp in your next years breeding program!! She chaned out her lighting system and the next year produced a much higher number of hens to cocks.
NOt sure about budgies but my tiels produced 5 males and only 1 female in last year's clutch
Looking forward to what's going to happen this spring not much longer now, can't wait for the next clutch, they are so cute and fuzzy and adorable
Miss ya chatty boy, there will never be another bird like you